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Time Tools

Time tools for the date arithmetic that recurs constantly in planning and project management: days between two dates, workdays excluding weekends and holidays, countdowns to a deadline, time zone conversion, and the smaller calculations around overtime and time-and-a-half pay. Dates are easy to get wrong by one because of inclusive-versus-exclusive counting and time-zone boundaries, so the tools here state which convention they use and let you switch when the answer matters. The common assumption that causes the most trouble is that subtracting two timestamps gives you the right number of business days; weekends, public holidays, and partial start and end days all need to be handled explicitly, which is why the Workdays Between Dates Calculator takes a holiday-list input and surfaces both the raw day count and the working-day count. If you are new to the category, start with the Days Between Dates Calculator for any general-purpose span (vacation length, project duration, age in days), the Workdays Between Dates Calculator when you are planning around a deadline, and the UTC to PST Time Converter when you are coordinating with someone in a different region. The Time and a Half and Overtime Calculator handles the wage math for hourly workers and is the right tool for verifying a paycheck. Date math is one of the more error-prone corners of programming, which is why we standardized on a single underlying date library across the category.

9 tools available