Dates & time
Beta
Add or Subtract Time from a Date
Add or subtract days, weeks, months or years from a date.
100% localNew
Use this toolTag
Resources for “calendar”
Discover 6 resources related to calendar.
Tools
Dates & time
Beta
Business Days Calculator
Count business days between two dates, excluding Saturdays and Sundays.
100% localNew
Use this toolDates & time
Beta
ISO Week Number Calculator
Find the ISO week number of a date and the start and end dates of that week.
100% localNew
Use this toolGuides and articles
GuideBest practicesBeginner
Create date lists and recurring dates for a schedule
Generate a date range or recurring series for schedules, repeated deadlines and date lists without a spreadsheet.
8 September 20261 minRead
GuideBest practicesBeginner
Date and time calculations: a practical guide
Date differences, durations, business days, ISO weeks, recurrences and formats: choose the right date and time calculation.
7 September 20262 minRead
GuideConcepts and technologiesBeginner
Date calculations: differences, deadlines, business days and calendar arithmetic
Learn how to calculate a difference between dates, add or subtract a duration, count days to a deadline, and distinguish calendar days from business days.
28 August 20264 minRead