Time and Date

  • PST to EST Converter
    Convert Pacific Standard Time (PST) to Eastern Standard Time (EST) instantly. EST is 3 hours ahead of PST. Enter a time and get the EST equivalent.
  • EST to CST Converter
    Convert Eastern Standard Time (EST) to Central Standard Time (CST) instantly. Enter the EST hour and minute to get the equivalent CST time (EST − 1 hour).
  • GMT to PST Converter
    Convert GMT (UTC) to Pacific Standard Time instantly. Enter a GMT hour and minute to get the equivalent PST time in 12-hour and 24-hour format.
  • IST to EST Time Converter
    Convert India Standard Time (IST) to US Eastern Standard Time (EST). Enter an IST hour and minute to get the equivalent EST time (IST − 10h 30m).
  • Subtract Days From a Date Calculator
    Subtract any number of days from a date instantly. Enter a start date and the days to subtract to get the exact earlier calendar date.
  • Days Until Date Calculator
    Count the exact number of days until any future date with our free Days Until Date Calculator. Countdown to birthdays, holidays, deadlines and events.
  • Age from Birth Year Calculator
    Find out how old you are if you only know your birth year. Year-only age estimate: current year minus birth year, with the birthday-not-yet-reached range.
  • Days Until Baby Is Born Calculator
    Count down the days until your baby's due date. Enter the estimated due date and today's date to see days, weeks, and months remaining.
  • Days Lived Calculator
    Find out exactly how many days you have lived. Enter your date of birth and an end date to count the total days, weeks, hours and years between them.
  • Current Unix Timestamp Calculator
    Convert milliseconds to a Unix timestamp (epoch seconds). Get the current epoch now plus minutes, hours, and days since Jan 1, 1970 UTC.
  • Shift Length Calculator
    Calculate how many hours you worked in a shift from start and end times minus your unpaid break. Handles overnight shifts that cross midnight.
  • Relationship Length Calculator
    Find out exactly how long you've been together. Enter your relationship start date to get years, months, days, total weeks and total days.
  • Calendar Days vs Business Days Calculator
    Count business days (workdays) between two dates. Subtracts weekends and optional public holidays from total calendar days. Free workday calculator.
  • Arrival Local Time Across Time Zones Calculator
    Calculate your arrival local time after a flight across time zones. Enter departure time, flight duration and UTC offsets to get destination local time and day offset.
  • 30 Days From Today Calculator
    Find out what date is 30 days from today (or any number of days). Get the exact future date and weekday instantly with this free date calculator.
  • Minutes to Hours and Minutes Converter
    Convert total minutes into hours and minutes instantly. Enter any number of minutes to see the equivalent hours, remaining minutes, and decimal hours.
  • Age of Majority Date Calculator
    Find the exact date you reach the age of majority. Enter a birthdate and choose 18 or 21 years to see the calendar date and days remaining.
  • Dog Age in Dog Years by Breed Size Calculator
    Convert your dog's age to human years by breed size. Small, medium, and large dogs age differently — get a more accurate dog-years estimate instantly.
  • Seconds to HH:MM:SS Converter
    Convert a number of seconds into hours, minutes and seconds (HH:MM:SS). Free, instant duration converter with a worked example and formula.
  • CST to IST Time Converter
    Convert Central Standard Time (CST/CDT) to India Standard Time (IST). CST is +11:30 ahead of IST, CDT is +10:30. Get instant accurate results.
  • MST to EST Time Converter
    Convert Mountain Standard Time (MST) to Eastern Standard Time (EST) instantly. EST is always 2 hours ahead of MST. Enter any MST time to get EST.
  • EST to CET Time Converter
    Convert Eastern Standard Time (EST, UTC−5) to Central European Time (CET, UTC+1). CET is 6 hours ahead of EST. Enter a time to see the instant result.
  • Ovulation Date Calculator
    Estimate your ovulation day and fertile window from the first day of your last period and your average cycle length. Free, fast, and easy to use.
  • Years to Months Calculator
    Convert years into months instantly. Enter any number of years and this free calculator returns the equivalent number of months (years × 12).

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