Time Unit & Format Converters
Instant bidirectional converters across nanoseconds, seconds, minutes, hours, days, weeks, months, years, centuries, plus 24-hour military clock and decimal timesheet tools.
Time Converter
Universal time unit converter. Convert instantly between nanoseconds, microseconds, milliseconds, seconds, minutes, hours, days, weeks, months, years, decades, and centuries.
Hours to Minutes Converter
Convert hours to minutes accurately with step-by-step math and decimal fraction breakdown. 1 hour = 60 minutes.
Minutes to Hours Converter
Convert minutes to decimal hours and hours/minutes format. Fast and accurate time conversion.
Hours to Seconds Converter
Convert hours to seconds. 1 hour = 3,600 seconds. Accurate formula and conversion table.
Seconds to Hours Converter
Convert seconds to hours and decimal hours with instant calculations.
Hours to Days Converter
Convert hours to days and fractional days. 24 hours = 1 day.
Days to Hours Converter
Convert calendar days to total hours. 1 day = 24 hours.
Minutes to Seconds Converter
Convert minutes to seconds. 1 minute = 60 seconds.
Seconds to Minutes Converter
Convert seconds to minutes and decimal fractions. 60 seconds = 1 minute.
Days to Minutes Converter
Convert days to minutes. 1 day = 1,440 minutes.
Minutes to Days Converter
Convert minutes to days and fractional days. 1,440 minutes = 1 day.
Days to Seconds Converter
Convert days to seconds. 1 day = 86,400 seconds.
Seconds to Days Converter
Convert seconds to full calendar days and fractions. 86,400 seconds = 1 day.
Weeks to Days Converter
Convert weeks to calendar days. 1 week = 7 days.
Days to Weeks Converter
Convert days to full weeks and remaining days. 7 days = 1 week.
Years to Months Converter
Convert calendar years to months. 1 year = 12 months.
Months to Years Converter
Convert months to years and fractional years. 12 months = 1 year.
Years to Weeks Converter
Convert years to weeks. 1 standard year = 52.1429 weeks.
Weeks to Years Converter
Convert weeks to solar years and fractions.
Years to Days Converter
Convert solar years to calendar days. 1 Gregorian year = 365.2425 days.
Days to Years Converter
Convert calendar days to years with Gregorian leap year compensation.
Months to Weeks Converter
Convert months to weeks. 1 average month = 4.345 weeks.
Weeks to Months Converter
Convert weeks to months for project schedules and pregnancy milestones.
24-Hour to 12-Hour Converter
Convert 24-hour clock time (e.g. 14:30) to standard 12-hour AM/PM time (e.g. 2:30 PM) instantly with explanation.
12-Hour to 24-Hour Converter
Convert 12-hour AM/PM time format to standard 24-hour clock format without ambiguity.
Military Time Converter
Convert standard AM/PM time to 4-digit military time and phonetic military pronunciation (e.g. 0800 hours, 1430 hours).
HH:MM:SS to Decimal Hours Converter
Convert hours, minutes, and seconds (HH:MM:SS) to decimal hours for timesheet billing and payroll.
HH:MM:SS to Minutes Converter
Convert hours, minutes, and seconds to total elapsed minutes with decimal precision.
HH:MM:SS to Seconds Converter
Convert HH:MM:SS timestamps directly to cumulative seconds for video editing, physics calculations, and programming.
Decimal Hours to HH:MM:SS Converter
Convert decimal hours (e.g. 7.75 hours) back into hours, minutes, and seconds (7h 45m 00s).