One duration per line. 1:30 = 1h30m, 90 = 90 min, 1.5 = 1h30m. Prefix with − to subtract.
Add and subtract times in hours:minutes (such as 1:30 + 2:45 − 0:15) and total up work hours (start, end and break) without Excel formulas or a separate calculator. In add/subtract mode, enter one duration per line and see the total in h:mm together with decimal hours (e.g. 8.50h) and total minutes. 1:30 means 1 hour 30 minutes, 90 means 90 minutes and 1.5 means 1 hour 30 minutes; prefix a line with − to subtract it. In work-hours mode, enter the start time, end time and break (minutes) for a day to get the worked time; use "Add a day" to stack rows for a week or month and get the grand total automatically. If the end time is earlier than the start time it is treated as an overnight shift. Everything runs in your browser; the times you enter are never stored or uploaded.
How to use
- In "Add / subtract times", enter one duration per line (1:30, 90 = minutes, 1.5 = hours). Prefix with − to subtract.
- Read the total in h:mm plus decimal hours and total minutes.
- In "Work hours", enter start, end and break (minutes) for each day. Use "Add a day" to stack rows and get the total worked time automatically.
FAQ
How do I add and subtract times?
Enter one duration per line. "1:30" means 1 hour 30 minutes, "90" means 90 minutes and "1.5" means 1 hour 30 minutes. Prefix a line with − to subtract it (e.g. −0:15). The total is shown in h:mm as well as decimal hours (e.g. 8.50h) and total minutes.
Can it subtract breaks to get worked hours?
Yes. In work-hours mode, enter the start and end times and a break in minutes to get the worked time (break subtracted) in h:mm. Use "Add a day" to stack multiple days and get the grand total automatically.
Does it handle overnight shifts?
Yes. When the end time is earlier than the start time, the row is treated as an overnight shift (24 hours are added) and labelled accordingly.
Are the times I enter stored?
No. All calculation runs in your browser; the times are never sent to any server or stored.