Assertion: leap year's day | /r/HasProperty | 12 hours
Facets:
Source sentences:
text: The molad can be calculated by multiplying the number of months that will have elapsed since some (preceding) molad whose weekday is known by the mean length of a (synodic) lunar month, which is 29 days, 12 hours, and 793 parts (there are 1080 "parts" in an hour, so that one part is equal to 3​1⁄ 3 seconds).