Time Duration Calculator
60
1 hr = 60 min
Time Equivalents
1 year365.25 days / 8,766 hours
1 month (avg)30.44 days / 730.5 hours
1 week7 days / 168 hours
1 day24 hours / 1,440 minutes
1 hour60 minutes / 3,600 seconds
1 minute60 seconds / 60,000 ms
Work year (standard)~260 working days
Work month (avg)~21.7 working days
Quick Tips
Leap Years
Leap years occur every 4 years (except centuries, unless divisible by 400). This adds 1 day to February.
Unix Timestamp
Unix time counts seconds since Jan 1, 1970 UTC. Current time ≈ 1.7+ billion seconds.
Working Days
A standard work year has ~260 working days (52 weeks × 5 days), not counting holidays.
Month Lengths
30 days: Apr, Jun, Sep, Nov. 31 days: Jan, Mar, May, Jul, Aug, Oct, Dec. Feb: 28/29 days.