Time calculators
Date and scheduling tools — work out durations, deadlines and working hours.
Days between dates
Exactly how many days are between two dates.
Business days between dates
How many working days are between two dates.
Add/subtract days
Add or subtract days from a date.
Weeks between dates
How many weeks are between two dates.
Months between dates
How many complete months are between two dates.
Hours between times
Hours between two times of day, including overnight.
Shift-length calculator
Paid length of a work shift minus a break.
Working-hours calculator
Weekly and annual working hours.
Break-time calculator
Total break time per week and per year.
Countdown calculator
Days remaining until a target date.
Meeting overlap helper
Find a shared time window between two people.