Date tools

Count days, find a weekday or week number, and compare meeting times between US cities.
9 pages in this topic.

Date tools
Calendar and Date Tools
Use free date tools to count days, calculate business days, find week numbers, and compare US meeting times. New York is the reference clock.

Date tools
Business Days Between Dates
Count business days between dates for free. Choose observed US federal holidays, weekends only, or custom closures; include or exclude endpoints.

Date tools
Days Between Dates
Calculate calendar days between two dates for free. Choose whether to include the start and end; weekends and holidays remain calendar days.

Date tools
Add or Subtract Days
Add or subtract days or weeks from a date for free. Choose calendar or business days, federal or custom closures; the starting date is day zero.

Date tools
Days Until a Date
Count days until or since a date for free. Today follows New York Eastern Time, including daylight saving time; enter your target date.

Date tools
Find the Day of the Week
Find the day of the week for a Gregorian date for free. Enter a month, day, and year to see the complete date and its weekday.

Date tools
Find the Week Number
Find a date’s week number for free. Compare Monday-start ISO weeks with Sunday-start US weeks and see the week-year at January boundaries.

Date tools
US Time Zone Converter
Convert a New York date and time to another supported US city for free. Account for daylight saving transitions and repeated local times.

Date tools
US Meeting Planner
Compare meeting times in New York and two supported US cities for free. See eight hourly options and each city’s weekday planning window.