Lunar Calendar Age

Find your age by the traditional lunar calendar.

Age counted by the moon

Some traditional calendars are lunar, based on the cycles of the moon rather than the sun, and an age counted that way differs from the familiar solar age. This works out your age by the lunar calendar, along with the reason the two differ.

Enter your birth date to find your lunar-calendar age.

Why lunar and solar ages differ

A lunar calendar's months follow the moon's cycle of about twenty-nine and a half days, so a lunar year of twelve such months is roughly eleven days shorter than a solar year. Over time this adds up, which is why an age reckoned by a purely lunar calendar slowly pulls ahead of the solar age. Lunar and lunisolar calendars remain important in many cultures for religious observance, festivals and traditional age-reckoning, and some cultures traditionally count age in ways that differ from the Western system for other reasons too. Understanding that a year can be measured by the moon as well as the sun, and that the two give different counts, is a window into the rich variety of ways human cultures have organised time — the familiar solar year being just one of several traditions.

Lunar Calendar Age FAQ

Why does a lunar age differ from a solar one?

Because a lunar year of twelve moon-cycle months is about eleven days shorter than a solar year, so a lunar-reckoned age slowly pulls ahead over time.

Where are lunar calendars used?

In many cultures for religious observance, festivals and traditional age-reckoning — the solar year is just one of several ways cultures organise time.

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