Today, May 9, 2025, the moon is 12 day old and is in the Waxing Gibbous phase of its lunar cycle. It is 90% illuminated. Moon phase Date First Quarter April 4 Full Moon April 12 Third/Last Quarter ...

Although the Gregorian Calendar was introduced in 1582, it dates back much further. Julius Caesar's astronomers discovered that there were 12 lunar cycles in a year. At the time, Rome had a 10 ...

The reason for the changing date is that Chinese New Year’s timing is based on the lunar year used for the Chinese calendar, which is sometimes called the Chinese Agricultural Calendar.

These deadlines enable us to better arrange our work, yet they are ... advent of contemporary calendars, this 29.5-day cycle has guided human activities. Although lunar timing may seem unusual ...

This is the twelfth sheet issued for UNPA’s Lunar New Year stamp series which completes the entire zodiac cycle. Previous years of the Ox zodiac sign are: 1961, 1973, 1985, 1997, and 2009.