Time Calculator
Add or subtract hours and minutes, and convert between different time units
Initial Time
Operation
Total Time
0s
Total Seconds
0
Total Minutes
0
Total Hours
0
Total Days
0
Total Weeks
0
Note: Time calculations are based on standard time units (60 seconds per minute, 60 minutes per hour, 24 hours per day, 7 days per week).
How It Works
The calculator adds or subtracts time and handles all the conversions automatically. It uses standard time units: 60 seconds = 1 minute, 60 minutes = 1 hour, 24 hours = 1 day, 7 days = 1 week. So if you add 90 minutes to 30 minutes, it'll show 2 hours. Handy for figuring out work hours, project timelines, or how long until something's done.
FAQ
How do I add time periods?
Just enter your starting time (hours, minutes, seconds), pick "Add," and enter how much time you want to add. The calculator shows the result in all different units.
Can I subtract time periods?
Yep, select "Subtract" and enter the time you want to subtract. You'll see what's left over.
How are time units converted?
Automatically. The calculator converts everything using standard factors (60 seconds to a minute, etc.). So 90 minutes shows up as 1 hour 30 minutes.