I mean, if you are able to travel at warp speed, you should be able to come up with a viable calendar.

What canon information is there regarding whether or not somebody boldly fixed the Leap Year flaw that Earth currently uses to reset their calendars?

  • 6
    I mean, leap year is not really a flaw in the calendar, it's a flaw in the Earth's orbit if anything.
    – zeldredge
    Commented Jun 30, 2015 at 2:49
  • 2
    Agreed @zeldredge. It's not like the leap year is some hack they came up with to fix a miscalculation when they set the length of the day and year. It's just a quirk of the relationship between Earth's rotation and revolution intervals.
    – Alarion
    Commented Jun 30, 2015 at 3:55
  • Earth is constantly slowing down. Having a leap year is much preferable to having the day to be 23 hours 59 minutes 49 seconds long (or whatever the current time is...)
    – Petersaber
    Commented Jun 30, 2015 at 7:38
  • @Petersaber The rotation rate of the earth on its axis isn't really related time it takes to orbit the sun.
    – Zoredache
    Commented Jul 1, 2015 at 7:23
  • 1
    @Zoredache No, it isn't. But the real time to orbit the sun is 24*365,25 hours, not 365*24. And that's caused by the fact that the day is not 24 hours long (it's a couple of minutes shorter). This is why we have a leap year - we are paying the "debt" by adding another day, made out of the quarters we collected
    – Petersaber
    Commented Jul 1, 2015 at 8:55

1 Answer 1


It would seem that yes: there are still leap years

Memory Beta doesn't have much to say on the matter unfortunately.

According to Memory Alpha:

One Earth year was equal to 365.2425 Earth days in the Gregorian calendar. To compensate for the fraction of a day, a leap day was added to every year whose number was divisible by four, unless it was a century, unless it was divisible by 400. These leap years consisted of adding an extra day to the month of February. Instead of the usual 28 days, there would be 29.

Now, this explains the situation as it currently stands; because there seems to be no mention of removing leap years, we could assume that they still exist.

Furthermore, the introduction of Stardates did not impact our local Earth calendar:

Stardates did not replace clock time or everyday units for expressing larger timespans, such as days, weeks, months, years, centuries, or millennia

Hence, it would seem that there has not been any modifications made to our current calendar system in the Star Trek universe, at least none mentioned which would impact the presence of a leap year.


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