Moon Phase Calculator

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Observer Desired Local Time - Valid year range is 2000 - 2036
Year: Month: Day: Time Zone:
Today is Sun, Jun 13, 2021 the moon is 3 days old, 10% illuminated and increasing.
PhaseLunation 265Lunation 266Lunation 267
New Moon Thu, Jun 10, 2021 5:53 AMFri, Jul 9, 2021 8:17 PMSun, Aug 8, 2021 8:51 AM
Waxing Crescent Moon Mon, Jun 14, 2021 2:24 AMTue, Jul 13, 2021 12:44 PMWed, Aug 11, 2021 9:36 PM
First Quarter Moon Thu, Jun 17, 2021 10:55 PMSat, Jul 17, 2021 5:11 AMSun, Aug 15, 2021 10:20 AM
Waxing Gibbous Moon Mon, Jun 21, 2021 6:18 AMTue, Jul 20, 2021 1:24 PMWed, Aug 18, 2021 8:41 PM
Full Moon Thu, Jun 24, 2021 1:40 PMFri, Jul 23, 2021 9:38 PMSun, Aug 22, 2021 7:03 AM
Waning Gibbous Moon Mon, Jun 28, 2021 2:56 AMTue, Jul 27, 2021 2:57 PMThu, Aug 26, 2021 4:38 AM
Third Quarter Moon Thu, Jul 1, 2021 4:11 PMSat, Jul 31, 2021 8:17 AMMon, Aug 30, 2021 2:14 AM
Waning Crescent Moon Mon, Jul 5, 2021 6:14 PMWed, Aug 4, 2021 8:34 AMThu, Sep 2, 2021 1:07 PM


Notes:
1. Use the Home link to return to the home page. Do not use the back button.
2. If more precise information is needed NASA has exact eclipse and moon phase data worked out for the entire century.
3. Time Zone is the number of hours the local time zone is offset from UTC(GMT), negative to the west and positive to the east.
Standard times are EST=-5, CST=-6, MST=-7 and PST=-8.
Daylight times are EDT=-4, CDT=-5, MDT=-6 and PDT=-7.
4. Lunation count starts with the first new moon in 2000 (1/6/2000) equals zero. Brown's Lunation Number is 953 greater.
5. Based on an algorithm developed by Jean Meeus (Astronomical Algorithms 1998).