Free time & date tools
Nine free tools. No signup, no ads.
- Time Duration CalculatorThe exact time between two times or dates — handles overnight automatically
- Work Hours CalculatorAdd up shifts with breaks; decimal hours and gross pay for payroll
- Stock Market HoursLive open/closed status for 10 major exchanges in your timezone
- Time Zone ConverterAny two places, with automatic daylight-saving handling
- Decimal Hours ConverterMinutes to decimal (and back) with the full payroll chart
- Sleep CalculatorHours slept, plus bedtimes that fit 90-minute sleep cycles
- Countdown TimerCount down to any date — then share it with a link
- Overtime CalculatorRegular vs overtime split, and what time and a half really pays
- Daily Time QuizFive clock-math questions a day, with an arcade-style leaderboard
- GuidesPractical articles on work hours, payroll time math, and timezones