Moon Phase Calculator

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Observer Desired Local Time - Valid year range is 2000 - 2036
Year: Month: Day: Time Zone:
Today is Wed, Apr 24, 2019 the moon is 20 days old, 70% illuminated and decreasing.
PhaseLunation 238Lunation 239Lunation 240
New Moon Fri, Apr 5, 2019 3:51 AMSat, May 4, 2019 5:46 PMMon, Jun 3, 2019 5:03 AM
Waxing Crescent Moon Mon, Apr 8, 2019 8:59 PMWed, May 8, 2019 6:59 AMThu, Jun 6, 2019 3:01 PM
First Quarter Moon Fri, Apr 12, 2019 2:06 PMSat, May 11, 2019 8:13 PMMon, Jun 10, 2019 1:00 AM
Waxing Gibbous Moon Mon, Apr 15, 2019 10:10 PMWed, May 15, 2019 6:12 AMThu, Jun 13, 2019 2:16 PM
Full Moon Fri, Apr 19, 2019 6:13 AMSat, May 18, 2019 4:12 PMMon, Jun 17, 2019 3:31 AM
Waning Gibbous Moon Mon, Apr 22, 2019 11:46 PMWed, May 22, 2019 1:53 PMFri, Jun 21, 2019 4:09 AM
Third Quarter Moon Fri, Apr 26, 2019 5:19 PMSun, May 26, 2019 11:34 AMTue, Jun 25, 2019 4:47 AM
Waning Crescent Moon Tue, Apr 30, 2019 5:32 PMThu, May 30, 2019 8:18 AMFri, Jun 28, 2019 2:23 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).