Temporal Math
Epoch Math & Time Duration
Calculate the exact elapsed time between two timestamps, or project future and past dates by adding or subtracting intervals.
Epoch Math & Duration Calculator
Calculate the exact difference between two timestamps, or add and subtract time offsets.
1. Timestamp Difference (A − B)
Duration:–
Total Seconds:–
Total Hours:–
Total Days:–
2. Add / Subtract Offset
New Timestamp:–
UTC Date:–
Relative:–
Epoch Duration Constants Cheat Sheet
1 Minute60 seconds
1 Hour3,600 seconds
1 Day86,400 seconds
1 Week604,800 seconds
30 Days (Month)2,592,000 seconds
365 Days (Year)31,536,000 seconds
Leap Year (366 Days)31,622,400 seconds
Decade (10 Years)315,576,000 seconds