Countdown & Calendar

Date calculators, countdown timers, and world clocks

8 free online tools in this category.

• Countdown Timer — Count down to any date or event with a shareable link
• Age Calculator — Calculate exact age in years, months, days and hours
• Days Between Dates — Calculate days, weeks and months between two dates
• Business Days Calculator — Count working days excluding weekends and holidays
• Week Number — ISO week number, day of year, quarter for any date
• World Clock — Current time in 25+ cities around the world
• Holiday Countdown — Countdown to Christmas, New Year, Easter and more
• Time Since Calculator — How much time has passed since any date or event