Day Counter
Count the number of days until or since any date — countdown or up.
Day Counter
Count the number of days until or since any date — countdown or up.
Date Difference Formula
ℹ️ Weeks = days ÷ 7 | Months ≈ days ÷ 30.44 | Years ≈ days ÷ 365.25
Disclaimer
Results provided by this calculator are for informational and educational purposes only. They are based on the values you enter and standard formulas, and should not be considered financial, medical, legal, or professional advice. Always consult a qualified professional before making important decisions based on these results. Roughtools makes no warranties regarding the accuracy or completeness of these calculations for your specific situation.
Frequently Asked Questions
Pro Tips
Business days vs calendar days matter for deadlines. A 30-day contract deadline is 30 calendar days, but a "30 business day" deadline is closer to 6 weeks.
Leap years (every 4 years, except century years not divisible by 400) add 1 day. Long-term date calculations that span February should account for this.
For countdown timers to important dates, include time zones — "Friday midnight" in New York is 3 hours different from California.
Age in years alone hides important milestones. "30 years, 6 months" is much more precise than "30 years old" for medical or legal calculations that need exact age.
When to Use This Calculator
Calculate exact days between today and a project deadline to plan work backwards.
Find exact age in days, weeks, or months for birthday milestones or official age verification.
Calculate days until a trip or visa expiry, or find the length of a journey between dates.
Verify contract end dates, notice periods, or lease expiry dates down to the exact day.
Count down days in a 30-day, 60-day, or 90-day fitness or habit challenge.
About the Day Counter
This day counter calculates the exact number of calendar days between today and any target date — either counting down to a future event or counting up from a past one. Toggle the business days option to exclude weekends and see only working days remaining. Enter any date to instantly see days remaining, weeks, and the day of the week of the target date. Perfect for project deadlines, event countdowns, anniversary tracking, and contract timelines.
How to Use the Day Counter
- 1
Enter the target date (the future or past date you want to count to/from).
- 2
The calculator uses today as the starting point automatically.
- 3
Toggle "Business days only" to exclude weekends from the count.
- 4
See days remaining (future) or days since (past), plus weeks and the day of week.
- 5
Bookmark the result page to revisit your countdown as the date approaches.
Related Calculators
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Calculate days, weeks, months, and years between two dates. Business days option.
Day of the Week Calculator
Find what day of the week any date falls on — past, present, or future.
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Calculate the exact duration between two times in hours, minutes, and seconds.
Time Zone Calculator
Convert times between any two time zones instantly with DST support.
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