Assertion: leap year's day | /r/HasProperty | added
Facets:
value: basically
type: DEGREE
value: ultimately
type: DEGREE
Source sentences:
text: This period normally has 4 days, but an extra day is added when needed to ensure that the following year starts on the vernal equinox.
text: Leap day (Feb. 29) was added to solve this problem but even that's not a perfect solution.
text: Eleven days were added.
text: To keep the calendar year synchronized with the seasons, an extra day was added every four years.
text: So, ultimately now 3 extra days have been added which needs to be fixed and hence it was decided that in a span of 400 years these 3 leap years would be made “common years” comprising of 365 days instead of 366.
text: To compensate for this extra time, an extra day needs to be added approximately every four years.
text: Basically, the extra day is added due to the solar system
text: The astronomer’s did this as the Earth’s orbit takes 365.24 days to complete its solar orbit so the extra day every four years is added to keep calendar seasons synchronised with solar seasons.
text: However, there is one more exception to the exception: for years ending in -00 that can be divided by 400, the extra day is added.
text: One day is added.
text: This period normally has 4 days, but an extra day is added when needed to ensure that the following year starts on the vernal equinox.