Date & Time Calculators

These date and time calculators do calendar maths precisely, including leap years and months of different lengths. Find your exact age on any date for exam, job or admission cut-offs, or count the days, weeks, weekdays and months between two dates for notice periods, leave and project plans.

Results update instantly and can be copied or shared as a link with the dates filled in. Each page explains how the count is made, including how month-end and 29 February dates are treated.