Time
1 hour (hr)
= 60 minutes
1 minute (min)
= 60 seconds (sec)
1 day
= 24 hours
1 week (wk)
= 7 days
1 month (mo)
= 28 to 31 days
***
1 year (yr)
= 12 months
= 52 weeks
= 365 days
1 leap year
= 366 days
***
Month
Number of Days
January
31
February
28 (leap year: 29)
March
31
April
30
May
31
June
30
July
31
August
31
September
30
October
31
November
30
December
31
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