2 ms·
Actually the synodic month is closer to 365/12 days than to 28 days, so the 13-month calendar drifts slightly faster with respect to phases of the moon.
by beefman 12y ago
Actually the synodic month is closer to 365/12 days than to 28 days, so the 13-month calendar drifts slightly faster with respect to phases of the moon.