Date Calculator
Calculate the difference between two dates, or add/subtract days from a date.
How to Calculate Date Differences
- 1Choose between 'Date Difference' or 'Add / Subtract Days' mode.
- 2Enter the start and end dates (or base date and number of days).
- 3Click 'Calculate' to see the result.
- 4Review the difference in years, months, days, and total days.
Frequently Asked Questions
How do I calculate the number of days between two dates?
Enter the start and end dates into SkyToolz's Date Calculator to instantly see the difference in years, months, and days.
Can I add or subtract days from a date?
Yes, switch to the 'Add / Subtract Days' tab, enter a base date and the number of days, and click Calculate.
Does the date calculator include the start date?
You can toggle the 'Include start date' option to choose whether the start date is counted in the difference.
What are 'exclude weekends (business days)' and 'week number'?
Exclude weekends counts only weekdays (Monday-Friday) for business day calculations. Week number shows which week of the year a date falls in, calculated according to the ISO international standard.
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