Time Calculator
Add, subtract, and calculate time differences with precision
Add Time
Time 1
+
Time 2
Addition Result
0:00:00
Subtract Time
Start Time
-
Subtract Time
Subtraction Result
0:00:00
Time Difference
Start Time
to
End Time
Time Difference
Total Time
0:00:00
Days
0
Hours
0
Minutes
0
Time Unit Converter
Conversion Result
120 minutes
=
2 hours
Time Calculation Guide
Time Units
- Second: Base unit of time
- Minute: 60 seconds
- Hour: 60 minutes = 3,600 seconds
- Day: 24 hours = 86,400 seconds
Time Formats
- 24-hour: 00:00 to 23:59
- 12-hour: 12:00 AM to 11:59 PM
- Decimal: Hours as decimal (2.5 = 2h 30m)
- ISO 8601: International standard