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Measurement units: time
Symbol: mo
Months (mo)
Days (day)
Days to months Months to days

A month is a unit of time, used with calendars, that is approximately as long as a natural orbital period of the Moon; the words month and Moon are cognates. The traditional concept arose with the cycle of Moon phases; such lunar months ("lunations") are synodic months and last approximately 29.53 days.
  • 1 month mo = 1*730.484398000 hours hr
  • 1 month mo = 1*4.348121417 weeks wk
  • 1 month mo = 1*0.001097219 callippic cycle cali
  • 1 month mo = 1*0.083333333333333 years yr
  • 1 month mo = 1*0.000000000 galactic years gal