2021 Qatar GP report | Hamilton closes the gap again

The title looks increasingly like it will go down to the wire.
Lewis Hamilton wins the Qatar Grand Prix.
Image credit: Getty Images

Lewis Hamilton – sporting a brave rainbow design on his crash helmet – dominated from pole position at the Qatar Grand Prix to narrow the gap to his title rival Max Verstappen.

The Mercedes – certainly in Hamilton’s hands – proved to be a class above at Losail on what will likely be its only appearance on the Formula 1 calendar.

Qatar took up the spot left vacant by the cancelled Australian Grand Prix and the Gulf State has since secured a 10-year deal for a race most likely at a different venue from 2023.

That is perhaps for the best as, whilst the track appeared fun to drive, it was not particularly conducive to good racing, with the drivers entirely reliant upon DRS for any overtakes.

We were given a mixed-up grid to spice things up somewhat, though, after five- and three-place penalties for Verstappen and Valtteri Bottas respectively, the pair having failed to slow for yellow flags during their final Q3 run on Saturday as they passed the three-wheeled Pierre Gasly.

Ironically, that left Gasly on the front row alongside Hamilton, with Fernando Alonso and Lando Norris on the second row, ahead of Carlos Sainz, Bottas and Verstappen.

The two out-of-place men had polar opposite starts. Bottas, having struggled to heat his medium tyres on the out lap, got away poorly from the dirty side of the grid, whilst Verstappen was up to fourth by the end of the first corner.

It only took him another four laps to move up to second and it suddenly looked as though we might be in store for another epic duel at the front.

Image credit: Getty Images

But Hamilton’s pace was simply too strong. He extended his advantage out to eight seconds and held it around there, with his team matching every strategy move Red Bull threw at them.

The seven-time world champion’s lead never looked in doubt, but there was some entertainment further back as the main protagonists’ wingmen fought through the field – Bottas had fallen back to 11th after his awful getaway, which is where Sergio Pérez had lined up on the grid after failing to progress through Q2.

The Mexican made lighter work of the midfielders, moving up to fourth by lap 16 but was brought in surprisingly early and had to do the hard work all over again.

Bottas eventually made his way all the way up to third but Mercedes tried to stretch his medium tyres too far and they cried ‘no more’ on lap 32, a front-left puncture dropping him way down the order and showering Alonso with a floor-level firework display of sparks.

Pérez had made his way back up through the pack once again – this time to third – but even more surprisingly was brought in on lap 40 despite being on the hard tyres.

For a third time, he fought his way past a series of drivers. Alonso asked for his teammate Esteban Ocon to ‘defend like a lion’ and repay the Spaniard for his crucial defence from Hamilton in Hungary where the younger Alpine driver secured an unlikely victory.

Ocon did his best but was somewhat helpless as Pérez stormed past on fresher tyres in a faster car.

Another obstacle was removed when Norris was cruelly denied a well-deserved top-five finish by another puncture, leaving no cars between Alonso and the Red Bull.

Ironically, it would be further punctures that would save the double world champion, however, as the front-left tyres on both Williams cars also gave up. George Russell successfully brought his car back to the pits but Nicholas Latifi had an entire lap to do and eventually gave up, parking his car near a marshall post and bringing out a Virtual Safety Car.

Image credit: Formula 1

That gave Alonso the breathing space he needed – both in terms of the gap to Pérez and the life expectancy of his tyres – and he came home to secure his first podium in a very long time.

2674 days to be precise. That is slightly less time than the record held by Alexander Wurz, but Alonso did claim the record in terms of the number of races, having contested 105 grands prix since his last trip to the rostrum at the 2014 Hungarian Grand Prix.

To put that in context, the last time Alonso stood on the podium, Hamilton was a one-time world champion, Sebastian Vettel was still at Red Bull and Verstappen had never stepped into a Formula 1 car.

Out front, Hamilton sailed to a comfortable victory, despite being helpless as Verstappen claimed the single point for fastest lap, but narrows the gap in the standings to eight points nonetheless.

Ocon came home fifth on an excellent day for Alpine which should secure them fifth in the Constructors’ Championship as Gasly fell from second on the grid to 11th at the chequered flag. It was also a strong day for Aston Martin with Lance Stroll finishing sixth and Vettel also in the points.

Norris recovered to ninth after his puncture but finished behind the two Ferraris on a day where it had looked like McLaren could close the gap to the Scuderia.

The Qatar Grand Prix in 60 Seconds

Answering the Burning Questions

Can Lewis Hamilton and Mercedes build on the momentum from an incredible weekend in Brazil? They can – it was a stellar performance from driver and team in Qatar.

Who will adjust the best to a brand new circuit? Hamilton, as he often does at a new circuit, and Alonso. The veterans showing that experience pays off.

Can McLaren do anything to bounce back as their fight with Ferrari looks to be getting away from them? It looked likely to be a yes until that late puncture. Third may now be out of reach for McLaren and Norris is only just clinging onto fifth in the drivers’ standings.

2021 Qatar GP preview

The first of two new tracks as the season reaches its final three races.

The Burning Questions

Can Lewis Hamilton and Mercedes build on the momentum from an incredible weekend in Brazil?

Who will adjust the best to a brand new circuit?

Can McLaren do anything to bounce back as their fight with Ferrari looks to be getting away from them?

The Track

The Stats

  • Track Length: 5.380 km
  • Laps: 57
  • Race Distance: 306.660 km
  • Maximum Speed: 350 km/h
  • Lap Time at Full Throttle: 51%
  • First Grand Prix: 2021
  • Race Lap Record: n/a
  • Outright Lap Record: n/a
  • Most Driver Wins: n/a
  • Most Constructor Wins: n/a

The Trivia

  • Sergio Pérez is the only current driver to have raced at Losail, winning a 2009 GP2 Asia event
  • MotoGP has competed at Losail since 2004
  • The track is 22 miles north of Qatar’s capital city of Doha
  • 1992 world champion Nigel Mansell took victory at Losail in the short-lived Grand Prix Masters championship

The Weather

The Quotes

Lewis Hamilton | “I do think as sports go to these places, they are duty bound to raise awareness for these issues. These places need scrutiny. It needs the media to speak about these things. Equal rights is a serious issue. However, I am aware in this place they are trying to make steps and it can’t change overnight.””

Max Verstappen | “Listen, if it would have been the other way around in Brazil it would have exactly played out like that. It’s hard racing. We are fighting for a championship; we are not here to be in a kindergarten.”

Sebastian Vettel | “I guess we are all loving Formula 1 in one way or another. We go to many different places; some great places, some places maybe not so great, but it depends what you like. Some places that are very liberal, others are not, it’s probably a fair reflection of the world in general. So naturally there are places with things to catch up on and others are not.”

Charles Leclerc | “Whatever is allowed, then I just want it to be clear as a driver. That’s the only thing that matters to me. If this is allowed, then overtaking around the outside is going to be very difficult. But yeah, whatever the situation, the decision is, I’ll just adapt my driving to it; so I’m fine with both.”

The Friday Form

Practice 2 Top 5

1 | Valtteri Bottas | 1:23.148 | 27 Laps
2 | Pierre Gasly | 1:23.357 | 27 Laps
3 | Max Verstappen | 1:23.498 | 20 Laps
4 | Lewis Hamilton | 1:23.570 | 25 Laps
5 | Lando Norris | 1:23.632 | 24 Laps

Practice 1 Top 5

1 | Max Verstappen | 1:23.723 | 22 Laps
2 | Pierre Gasly | 1:24.160 | 28 Laps
3 | Valtteri Bottas | 1:24.194 | 24 Laps
4 | Lewis Hamilton | 1:24.509 | 21 Laps
5 | Yuki Tsunoda | 1:24.648 | 27 Laps

The Photos

The Predictions

Podium

Pole Position

Fastest Lap

Driver of the Day

2021 São Paulo GP report | Hamilton the hero in Brazilian blockbuster

From first to last to first, with plenty of controversy along the way.
Lewis Hamilton celebrates winning the São Paulo Grand Prix.
Image credit: Daimler AG

Lewis Hamilton produced an incredible performance at the São Paulo Grand Prix, moving from the very back of the grid at the start of Saturday’s Sprint Race to eventually take victory.

Mercedes had upset the form book by proving to be the class of the field as the weekend progressed, allowing Hamilton to top qualifying on Friday evening during Formula 1’s third and final Sprint Race weekend of the season.

The drama and controversy started early as the rear wing on car number 44 failed a post-qualifying inspection and was impounded for further investigation, only for Hamilton’s title rival Max Verstappen to then also be called to the stewards having illegally touched the offending rear wing in parc fermé.

Well over 12 hours later, the punishments were eventually dished out. Verstappen received a 50,000 euro fine, whilst Hamilton was disqualified and sent to the back of Saturday’s grid.

Thus, the stage was set for a masterclass.

The Sprint Race saw Hamilton’s teammate Valtteri Bottas jump Verstappen at the start and hold him off for the win, whilst the other Mercedes rose from 20th to fifth, passing 15 cars in just 24 laps.

Hamilton would be forced to take a further penalty ahead of the main race, however, having stuck yet another motor in the back of his Mercedes for this event, and lined up up 10th on Sunday.

Image credit: Getty Images

As the lights went out, Verstappen returned the favour to Bottas, beating him to the first corner and, as Bottas slid wide at Turn Four, it was suddenly a Red Bull 1-2. Hamilton, meanwhile, had wasted no time once again, moving up to seventh as he went around the outside of Pierre Gasly at Ferradura.

He had been helped by the absence of Lando Norris, who was the victim of an excellent getaway – passing Carlos Sainz immediately for what would likely have been third place, but drifting left slightly too early and picking up a puncture as their wheels touched.

Hamilton then picked off Sebastian Vettel, Sainz and Charles Leclerc in the next three laps, and was suddenly into a podium position after Bottas followed team orders to let his fellow Silver Arrow through at the start of lap 5.

Much of the next 10 laps was spent under Safety Car or Virtual Safety Car conditions – following clashes between first Lance Stroll and Yuki Tsunoda, and then Mick Schumacher and Kimi Räikkönen – but when racing resumed, Hamilton found his way past a stubborn Sergio Pérez at the second attempt.

The prospect of another Hamilton-Verstappen wheel-to-wheel battle had gone from incomprehensible to imminent in the space of 24 hours.

The reigning champion closed the gap to the championship leader and then went for the undercut on lap 26 to further reduce the deficit.

Image credit: Formula 1

A second VSC gave Bottas a cheap pit stop and allowed him to jump Pérez, but all eyes were now fixed on the front two.

Hamilton got to within a couple of seconds but, suffering in the dirty air of his rival, was unable to get close enough to make a move. Red Bull then triggered the second round of pit stops themselves on lap 40 to protect against an undercut.

Mercedes brought Hamilton in three laps later and, with a fresh set of hard tyres, he was very quickly onto the back of Verstappen, and this time able to get much closer.

His first attempt at an overtake came on the run to Turn Four on lap 48, the Briton getting alongside and then in front, only for Verstappen to make a desperate dive. Both cars were forced well off the track and returned with the Red Bull in front. (More on that later.)

The two pit walls predictably complained and defended in calls to Race Director Michael Masi, with the decision coming back shortly after that no investigation was necessary. “Of course”, came the sarcasm-laden reply from Hamilton.

10 laps later Verstappen did receive a cautionary black-and-white flag for weaving, with Hamilton unable to pass once again.

It was third time lucky for Hamilton on the next lap, though, as he swept past Verstappen on the same stretch of track before even reaching Turn Four.

Lewis Hamilton and Max Verstappen at the São Paulo Grand Prix.
Image credit: LAT Images

And that was that. The Mercedes pulled away into the distance, ultimately finishing over 10 seconds down the road with Bottas closing onto the back of Verstappen but running out of laps and settling for third.

Pérez, with a comfortable gap back to Leclerc in fifth, pitted to steal the point for fastest lap away from Hamilton, but it will have done little to dampen the 36-year-old’s mood on a day that will go down as one of the greatest drives in an incomparable career not exactly lacking in that department.

Hamilton waved a Brazilian flag to the adoring crowds – taking one final penalty in the shape of a fine for unbuckling his seat belt to do so – amid a febrile Brazilian atmosphere, as he closed the gap at the top of the standings to 14 points.

The title battle, which many declared over upon the news of Hamilton’s disqualification on Saturday, is very much back on heading into the final three races.

Ferrari Tighten Their Grip on Third

Charles Leclerc and Carlos Sainz at the São Paulo Grand Prix.
Image credit: Foto Colombo Images

The Prancing Horses finishes line astern, with Sainz following his teammate home in sixth, which sees Ferrari extend their advantage over McLaren in the Constructors’ Championship to 31.5 points.

Norris recovered impressively from his puncture, with a bit of help from that early Safety Car, to take a consolatory point for 10th, whilst Daniel Ricciardo retired with a power-loss issue.

Since their engine upgrade, the Scuderia have made a clear step forward at the same time that McLaren have struggled for pace and failed to take advantage of their opportunities when they did have some. Norris’s agonising near-miss in Russia now seems even more painful as the red cars disappear off into the distance, both on the track and in the standings.

It looks a big ask for the team from Woking to recover such a large gap, but as we’ve seen on numerous occasions this season, the tide can turn very quickly – particularly at two unknown venues.

Another Robust Verstappen Defence

As the camera panned around Turn Four on lap 48, it looked very much like we were about to see the two title protagonists make it three out of three for collisions on a Sprint Race weekend.

As it was, they survived to fight another day – or rather another lap – despite emerging from the corner a good 10 metres wide of the track’s edge.

Image credit: Getty Images

It was another Michael Schumacher or Ayrton Senna-esque defensive manoeuvre from Verstappen – a ‘you move or we crash’ dive. He was clearly behind Hamilton here and, through sheer desperation and characteristic bloody-mindedness, braked so late that he was never going to make the corner, leaving Hamilton with two options: to make contact or to stay right of him and take to the run-off area as well.

I mentioned in the Italian race report that, for all his undeniable speed and talent, these incidents bring a question to Verstappen’s wheel-to-wheel ability.

The instances of him forcing drivers off the road outnumbers his on-the-edge battles at an increasing rate. He surely has the ability and spatial awareness required, but whether he chooses to do so is the bigger issue.

Thanks to Hamilton’s eventual overtake and victory, the furore surrounding the decision that no investigation was necessary has been lessened, but the inconsistency has not escaped drivers, teams or viewers.

This further solidifies a dangerous precedent. Under Masi’s management, F1 has increasingly allowed the driver on the inside to simply run their competitor on the outside off the track. Apart from during the Austrian Grand Prix for some reason, where Norris and Pérez were penalised a total of three times.

This was an even more extreme example. Verstappen surely gained a lasting advantage by leaving the track and the decision to allow that was seemingly reached by the stewards without the onboard footage from the Red Bull, which at the time of writing is still yet to be released…

This has been one of the best title battles in years, if not decades. But it would be nice if the two superstars at the front were able to battle wheel-to-wheel rather than it being a case of Hamilton deciding whether or not he is willing to back out on this occasion and, ergo, whether or not the battle will end in a crash.

The São Paulo Grand Prix in 60 Seconds

Answering the Burning Questions

Will Red Bull continue to hold an advantage at another track that should suit them? No they won’t!

With the potential for rain over the weekend, will Interlagos produce its trademark levels of drama? Who needs rain for drama at Interlagos?

Can McLaren do anything to bounce back as their fight with Ferrari looks to be getting away from them? Nope, although it could have been very different if Norris had moved over a metre or so later.

2021 São Paulo GP preview

Will it be three sprint races, three collisions at the front?

The Burning Questions

Will Red Bull continue to hold an advantage at another track that should suit them?

With the potential for rain over the weekend, will Interlagos produce its trademark levels of drama?

Can McLaren do anything to bounce back as their fight with Ferrari looks to be getting away from them?

The Track

The Stats

  • Track Length: 4.309 km
  • Laps: 71
  • Race Distance: 305.909 km
  • Maximum Speed: 350 km/h
  • Lap Time at Full Throttle: 51%
  • First Grand Prix: 1963
  • Race Lap Record: Valtteri Bottas | Mercedes | 2018 | 1:10.540
  • Outright Lap Record: Lewis Hamilton | Mercedes | 2018 | 1:07.281
  • Most Driver Wins: Michael Schumacher | 1994, 1995, 2000, 2002
  • Most Constructor Wins: Ferrari | 1976, 1977, 1990, 2000, 2002, 2006, 2007, 2008, 2017

The Trivia

  • 1991 saw Ayrton Senna‘s infamous first home victory, with the three-time world champion screaming over the radio at the end of the race, having driven the final laps of the race stuck in sixth gear
  • The 1994 Brazilian Grand Prix was the last time an F1 race was won by over a lap
  • Giancarlo Fisichella was eventually announced the winner of the 2003 race, five days after the event, due to a countback error following a red flag in a chaotic wet race
  • Pierre Gasly and Carlos Sainz recorded the first podium finishes of their careers at the 2019 Brazilian Grand Prix. It was the first time that two drivers had taken their maiden podium finish at the same race since Germany in 1994

The Weather

The Quotes

Max Verstappen | “I’ve had a bigger lead already in the championship and that disappeared within two race weekends. We have to again try do the best we can do here and then after this weekend we will try to win the race.”

Lewis Hamilton | “I think people underappreciate just how well we’ve done considering the pace they’ve had since day one.”

Toto Wolff | “It’s not been our strongest track in recent seasons and has tended to suit Red Bull more, but this year has proved anything can happen. It’s the last Sprint Race weekend, too, which opens up more opportunity.”

Daniel Ricciardo | “That was maybe the bigger frustration, you’re able to hold off a Mercedes but normally if you’re doing that you’re on the podium. Obviously in our case we were trying to come back through the field. I guess it was a pretty long Sunday for both of us but there was some promise in that we could hold [Valtteri Bottas] off.”

The Friday Form

Practice 1 Top 5

1 | Lewis Hamilton | 1:09.050 | 31 Laps
2 | Max Verstappen | 1:09.417 | 22 Laps
3 | Sergio Pérez | 1:09.492 | 28 Laps
4 | Valtteri Bottas | 1:09.567 | 30 Laps
5 | Pierre Gasly | 1:09.880 | 32 Laps

The Photos

The Predictions

Podium

Pole Position

Fastest Lap

Driver of the Day

2021 Mexico City GP report | Verstappen extends title lead

Chaos at Turn One, not a whole lot after that.
Max Verstappen and Sergio Perez celebrate with the Mexican flag.
Image credit: Getty Images

Max Verstappen and Red Bull dominated at the Mexico City Grand Prix as the Dutchman took another big step towards securing his first championship.

The Red Bulls had, as expected, proven to be easily the quickest package around the Autódromo Hermanos Rodríguez, as the Mercedes engine struggled in the thin air 2,200 metres above sea level. But during qualifying the form book was flipped on its head as Yuki Tsunoda, Sergio Pérez and Verstappen tripped over one another on the crucial final lap of Q3, allowing a surprise Mercedes front-row lockout.

The long run to the first corner would clearly be crucial and Mercedes had hatched a plan for Lewis Hamilton to slot in behind teammate Valtteri Bottas so as to benefit from the slipstream.

However, Hamilton got the better start and was almost immediately alongside the Finn. There was still the opportunity to form a dual-Mercedes roadblock, but Bottas left a Verstappen-sized gap on the outside and car number 33 happily slotted into it, with the trio heading into the first corner three-wide.

Verstappen was able to brake far later than the two Silver Arrows – who had been struggling with the heavy braking for the first corner all weekend – and sweep round on the grippier racing line. From there, the race was his.

The first corner of the Mexico City Grand Prix.
Image credit: Motorsport Images

Mercedes’ poor opening 30 seconds got worse still as Bottas was spun around by Daniel Ricciardo, with chaos ensuing amongst the following pack.

Pérez took to the grass as the rest of the drivers attempted to navigate the stranded Mercedes, but Tsunoda and Mick Schumacher were both launched into the air as they sandwiched a helpless Esteban Ocon and would be forced to retire from the resulting damage.

Once the inevitable Safety Car had returned to the pits and Verstappen had successfully survived a second run to Turn One, he streaked off into the lead and it became clear that, on this occasion, it would not be a Hamilton-Verstappen battle as much as the seven-time world champion defending second place from the second Red Bull.

Home hero Pérez sat within two seconds of Hamilton for much of the first half of the race without ever getting close to attempt a move. Red Bull then attempted to create a tyre deficit for the second stint, leaving him out for a further 11 laps after Hamilton pitted. Despite closing in rapidly, he was again unable to pass in the closing laps, but was nonetheless delighted with third place as he became the first Mexican driver to climb onto the podium at the Mexican Grand Prix.

Out front, it was plain sailing for Verstappen. A few late games as a lapped Bottas attempted to steal the point for fastest lap away from him were his only real point of note as he clinched a ninth win of the season and extended his championship lead to 19 points.

Max Verstappen sitting on his car as it rises to the podium.
Image credit: LAT Images

Behind the front three, Pierre Gasly came home an excellent fourth, followed by the Ferrari pair, as the Scuderia leapfrogged McLaren into third in the constructors’ standings. Then came the old guard, in the shape of Sebastian Vettel, Kimi Räikkönen and Fernando Alonso, with Lando Norris taking the final point as he recovered well from the back of the grid.

Championship Over?

There has been a lot of talk on social media of Verstappen having the title all but wrapped up after yet another win. But, there are still four races to go in which anything could happen.

Brazil next weekend looks likely to favour Red Bull again, but by a smaller margin, and Interlagos has a knack for producing chaos one way or another. After that come two unknowns in Qatar and Saudi Arabia, before the finale in Abu Dhabi which should see the teams fairly evenly matched.

Hamilton certainly has plenty of work to do now, and will probably need a hand from lady luck, but all it takes is one retirement to turn the championship on its head.

After all, never forget the end of the 2007 season… Räikkonen was 17 points behind with 20 remaining from the final two races and somehow managed to come away with the title.

The fat lady may be doing her vocal warm-ups but there’s still a long walk from her dressing room to the stage.

The Mexico City Grand Prix in 60 Seconds

Answering the Burning Questions

Will Red Bull have the advantage that most expect of them this weekend? Yes, they will.

Can Sergio Pérez do anything special in front of his passionate home crowd? The first-ever Mexican to finish on the podium and to lead at his home race is pretty special.

Will there be any major announcements over the weekend? Nothing this week.

2021 Mexico City GP preview

Will Day of the Dead prove to be a Day of the Red (Bull)?

The Burning Questions

Will Red Bull have the advantage that most expect of them this weekend?

Can Sergio Pérez do anything special in front of his passionate home crowd?

Will there be any major announcements over the weekend?

The Track

The Stats

The Trivia

  • At 2,240 metres above sea level, the Autódromo Hermanos Rodríguez is by far the highest track on the current F1 calendar
  • Gerhard Berger took his first win at the 1986 Mexico Grand Prix, driving a Benetton B186 – one of the most powerful F1 cars ever raced – and completed the win on a single set of tyres
  • John Surtees, Denny Hulme, Graham Hill and Lewis Hamilton have all clinched the world title in Mexico, with the latter doing so twice, in 2017 and 2018
  • In 2018, Max Verstappen became the first driver to win the Mexican Grand Prix in consecutive years

The Weather

The Quotes

Lewis Hamilton | “I always want to win it in the right way and if you’re going to lose it, you lose it in the right way also.”

Max Verstappen | “I will race hard like Lewis does and everyone else does and of course always try to keep it clean.”

Sergio Pérez | [On whether he would move aside for Verstappen whilst in the lead] “I think it will be a great problem to have from my side, you know? It always depends on the situation, because most of the decisions are normally taken during the race, during the heat of the event, so I think that depending on the circumstances, we’ll see. But I’m pretty sure the whole team, Red Bull, everyone, wants me to win this weekend.

Andrea Stella | “We don’t anticipate that from an HPP (Mercedes) point of view there should be any larger deficit than the other manufacturers. From a power point of view I don’t think this puts a McLaren or any other HPP cars at a disadvantage. Possibly in the past we saw there as a bit more of a swing associated with the power-unit, but I don’t see the technical reasons why this should still be true.”

The Friday Form

Practice 2 Top 5

1 | Max Verstappen | 1:17.301 | 28 Laps
2 | Valtteri Bottas | 1:17.725 | 31 Laps
3 | Lewis Hamilton | 1:17.810 | 26 Laps
4 | Sergio Pérez | 1:17.871 | 26 Laps
5 | Carlos Sainz | 1:18.318 | 29 Laps

Practice 1 Top 5

1 | Valtteri Bottas | 1:18.341 | 28 Laps
2 | Lewis Hamilton | 1:18.417 | 24 Laps
3 | Max Verstappen | 1:18.464 | 28 Laps
4 | Sergio Pérez | 1:18.610 | 20 Laps
5 | Pierre Gasly | 1:18.985 | 23 Laps

The Photos

The Predictions

Podium

Pole Position

Fastest Lap

Driver of the Day