About the 60 Day Calculator
This calculator finds the date that is a given number of days — 60 by default — before or after a start date. It uses standard calendar arithmetic (the same rules a paper calendar follows), so month lengths and leap years are handled automatically, and it can optionally count only business days instead of every calendar day.
How the calculation works
- Calendar days: the target date is simply the start date plus (or minus) the number of days entered. "60 days after July 17" is found by walking the calendar forward 60 days, correctly rolling over month boundaries — 14 days remain in July, then 31 in August, then the rest fall in September.
- Business days: the calculator steps forward one calendar day at a time and only counts a day if it is Monday through Friday, skipping Saturdays and Sundays. Because only 5 of every 7 days count, a 60-business-day span covers roughly 84 calendar days — about 12 weeks — rather than the 8 weeks and 4 days a straight calendar count would give.
- Direction: choosing "before" subtracts the days instead of adding them, which is useful for working backward from a deadline to find when to start.
Common uses
- Contract and legal notice periods (30-day, 60-day, or 90-day windows)
- Return, refund, or warranty deadlines
- Project milestones and due-date planning
- Medical follow-up scheduling and quarantine or waiting periods
Precision note
Business-day mode excludes only Saturdays and Sundays — it does not know about public holidays, which vary by country, state, and year. If a deadline must exclude specific holidays, check the applicable calendar and adjust the result manually. For legal or contractual deadlines, also confirm whether the rule counts the start date itself.
Frequently Asked Questions
How do I find the date 60 days from today?
Set the start date to today, leave Number of days at 60, keep Direction on After, and choose Calendar days. The calculator adds 60 days to the start date using standard calendar arithmetic, so month lengths and leap years are handled automatically.
What is the difference between calendar days and business days?
Calendar days count every day, including weekends. Business days skip Saturdays and Sundays, so a 60-business-day period spans about 84 calendar days (roughly 12 weeks) because only 5 of every 7 days count. Neither mode excludes public holidays unless you adjust the result yourself.
Is 60 days the same as two months?
Not exactly. The average calendar month is about 30.4 days, so 60 days is close to two months but rarely exact — 60 days starting July 1 lands on August 30 (two months minus a day), while 60 days starting February 1 in a non-leap year lands on April 2. Always use exact day counting for deadlines.
Does this calculator account for public holidays?
No. Business-day mode only excludes Saturdays and Sundays. Public holidays vary by country, state, and year, so for legal notice periods, court filings, or contract deadlines that must exclude holidays, check the applicable holiday calendar and adjust the result manually.