Time & dates
Business days calculator
Working days between two dates, without weekends and public holidays.
Open calculator Time & datesDate difference calculator
Years, months, weeks and days between two dates, or exact age.
Open calculator Time & datesAdd days to a date
The date after or before a number of days, weeks, months or working days.
Open calculator Time & datesTime zone converter
What time it is in another city, with daylight saving time included.
Open calculator Time & datesWork hours calculator
Total weekly hours from start and end times, minus breaks, and the pay.
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Questions and answers
Are holidays included in the business-day count?
Yes. The business days calculator skips the official holidays of the country you choose, from the same holiday calendar shown on the site, for 7 countries.
Does the time zone converter handle daylight saving time?
Yes. The conversion uses your browser's time zone data, including the daylight saving change on the date you pick.
Is the data I enter saved?
No. The math runs in your browser; nothing is sent to the server or saved.