Leap year check
No, 3443 is not a leap year.
3443 is not divisible by 4, so it is NOT a leap year, February has the usual 28 days.
A year is a leap year in the Gregorian calendar when it is divisible by 4, with one exception and one exception to that exception: a year divisible by 100 is not a leap year unless it is also divisible by 400. 3443 is not divisible by 4 (3443 ÷ 4 = 860.75), so it cannot be a leap year. The nearest leap years are 3440 before it and 3444 after.
3443 has no February 29, February ends on the 28th. The closest leap day is in 3444, when February 29 falls on a Thursday. If you are counting toward a leapling birthday or a date-sensitive deadline, that 3444 leap day is the one to watch.
3443 runs 365 days, or 52 full weeks plus 1 day. The leap year before 3443 was 3440 and the next one is 3444, keeping the familiar four-year rhythm. To do date math across 3443, counting days to a deadline, an age, or an anniversary that crosses a leap day, use the days-between calculator, which handles leap days automatically.
Check another year
Type a different year, or count the leap years across a range.
Enter any year from 1582 to 4000.
No, 3443 is not a leap year
3443 is not divisible by 4, so it is NOT a leap year, February has the usual 28 days.
Count leap years in a range
How many leap years fall between two years (inclusive).
5 leap years between 3443 and 3463 (21 years, about one every 4.20 years).