About this tool
Convert time values across SI seconds, common subdivisions (min, h, d), and longer periods (wk, month, year).
Formula
value_to = value_from × (factor_from ÷ factor_to), with factors in seconds.
Worked example
90 min × (60 ÷ 3600) = 1.5 h
Notes
Month uses the average length of a Gregorian month (30.4375 days). Year uses the Julian year (365.25 days).