Lunar Calendar Calculator
Calculate lunar calendar with Calculator 360 using the available inputs.
Try an example
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How to use this calculator
Find the Moon phase for a date and view the official principal phase calendar in UTC or Paris time from 2020 through 2040.
Enter the values required by the selected mode. Results use the shared calculator engine and its stated limits.
Local calculation; consult the method and limits shown below. References: US Naval Observatory Moon phases · USNO phase and illumination definitions ·
Frequently asked questions
What does this tool calculate?
Find the Moon phase for a date and view the official principal phase calendar in UTC or Paris time from 2020 through 2040.
Are the results estimates?
Check the assumptions and limits shown for the selected calculation.