Date Difference Calculator
Count days, weeks and business days between two dates.
Difference
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- Time Zone Converter — Compare date-times in named time zones.
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Clear instructions
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How to use the Date Difference Calculator
Compare two dates in days, weeks and other displayed calendar totals.
- 1 Enter Start date and End date.
- 2 Choose Include the end date when both endpoints should be counted, or use Swap dates.
- 3 Read Difference, Business days and Weekend days.
Example and practical tips
From January 1 to January 2 is one day of elapsed date difference; including the end date adds one day to the count.
Frequently asked questions
Does the business-day total exclude public holidays?
No. It distinguishes weekdays and weekends rather than using a country-specific holiday calendar.
Are hour totals exact across daylight-saving changes?
They are derived from date arithmetic, not a zone-specific elapsed-time interval. Use a suitable time-zone calculation for exact instants.