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 workday tools here take a holiday-list input and surface both the raw day count and the working-day count. If you are new to the category, start with the date-span tools for any general-purpose range (vacation length, project duration, age in days), the workday tools when you are planning around a deadline, and the time zone converters when you are coordinating with someone in a different region. The overtime tools handle the wage math for hourly workers and are the right place to verify 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