Avengers: Doomsday Countdown

Avengers: Doomsday comes out on Friday, December 18, 2026, in US theaters. That is the date Marvel Studios gives on its own page, Marvel.com: Avengers: Doomsday (2026), which DateMath last checked on November 1, 2026. On that day, 47 days were left, which is 6 weeks, 5 days.

Release day is a Friday. If Marvel Studios announces another date, this Avengers: Doomsday countdown moves to it and this page says so; rumoured dates and leaks are never used.

• The time left in days, hours, minutes and seconds, ticking live: the Avengers: Doomsday countdown timer, from the time on your device.
• Calendar days to go, with the same span in weeks and days, counted on dates the way you would on a calendar.
• The source of the date, linked, and the day it was last checked.
• After release day: the date it came out and how many days ago, in place of the tiles.

Press Full screen to put the countdown on a monitor or a TV, or copy a link to this countdown to send it to friends: each of them sees it count down on their own clock.

At 12:00 AM on December 18, 2026, on your own clock. Marvel Studios gives a release date, not a time, so the countdown ends when that date begins where you are: in New York 3 hours before Los Angeles. A film opens with the first showing at your cinema, which its listing gives.

The tiles count real time, so a daylight saving change before release day is counted as the hour it adds or takes away. The calendar days line counts dates and changes at midnight, which is why it can show one day more than the tiles.

The days left from fixed dates before the film comes out, counted the way the calendar days line counts them, release day not included. The hours are the real time from 12:00 AM on the first date to 12:00 AM on release day on the US Eastern clock, so a daylight saving change in between counts as the hour it adds or takes away:

DateMath lists a release only once its publisher has announced a date, and takes that date from the publisher's own page, which each countdown links, with the day DateMath last checked it. Rumoured dates, leaks and release windows such as "fall" are left out. Publishers give a date, not a time, so the countdown runs to 12:00 AM on that date on your device's clock and shows the real time left, counting the hour of any daylight saving change in between. When a date moves, the countdown moves with it and the page says so.

• Your device's local time. DateMath's countdowns read the current time from your device and count to the target in your own time zone. In the US, the standard time zones are set by 15 U.S.C. 261 and daylight saving time by 15 U.S.C. 260a (from 2:00 AM on the second Sunday in March to 2:00 AM on the first Sunday in November); your device applies them. Source: 15 U.S.C. 261, 15 U.S.C. 260a.
• The Gregorian calendar. DateMath treats every date as a Gregorian date, with its leap-year rule: a year divisible by 4 is a leap year, except century years not divisible by 400, so 2000 had a February 29 and 2100 will not. Source: Gregorian calendar.

DateMath's date math is tested against more than 100 cases worked out by hand. Every worked example and table on the site is computed with the same code the calculators run, so a page and its calculator can't disagree.