usually 4 years (2008-2012); sometimes 8 years (2096-2104)
Usually every four years - more specifically, years that are divisible by 4. There are exceptions at the end of a century.
There are 4 years between leap year!
every 4 years
4
There are 4 years between every leap year. Correction: There are 4 years between MOST leap years. That's the case 99.25% of the time. For the other 0.75% of the time, there are 8 years between leap years.
1 day
8 years
997.5 days and 999.78 on each leap year.
3900
Time Leap happened in 360.
Yes. Basically, the years that are multiples of 4 are leap years (with some exceptions at the end of a century).
Four years.
Time Leap was created on 2007-12-27.
2100 is not a leap year, because it is not divisible by 400, although divisible by 4 and by 100. So from 2096 to 2104, there will be an 8 year gap between leap years.
the border between china and Afghanistan (3.5 hours)
The amount of time that elapses between each of the four principal phases of the moon is 29.5 days. The phases are roughly equal to each other.