Time and Date

  • CST to PST Converter
    Convert Central Standard Time (CST) to Pacific Standard Time (PST) instantly. PST is 2 hours behind CST. Enter the CST hour and minute to get PST.
  • IST to GMT Converter
    Convert Indian Standard Time (IST, UTC+5:30) to Greenwich Mean Time (GMT, UTC+0). Enter an IST time and instantly get the GMT equivalent.
  • IST to CST Time Converter
    Convert India Standard Time (IST) to Central Standard Time (CST) instantly. IST is UTC+5:30 and CST is UTC−6, an 11.5-hour difference.
  • EST to MST Converter
    Convert Eastern Standard Time (EST) to Mountain Standard Time (MST) instantly. EST is 2 hours ahead of MST. Enter any hour and minute.
  • PST to CST Time Converter
    Convert Pacific Standard Time (PST) to Central Standard Time (CST) instantly. CST is 2 hours ahead of PST. Enter any hour and minute to get the result.
  • EST to GMT Converter
    Convert Eastern Standard Time (EST, UTC-5) to Greenwich Mean Time (GMT, UTC+0). Enter an EST time and get the exact GMT clock time by adding 5 hours.
  • Social Security Full Retirement Age Calculator
    US Social Security tool: enter your birth year to find your full retirement age (FRA) when you qualify for 100% unreduced retirement benefits.
  • Intermittent Fasting Time Calculator
    Calculate when your fast ends and your eating window opens and closes based on your last meal and chosen fasting schedule like 16:8 or 18:6.
  • Half-Life Time Calculator
    Calculate the time required for a substance to decay from an initial quantity to a remaining amount using its half-life and the decay formula.
  • Time and a Half Calculator
    Calculate time and a half overtime pay. Enter your hourly rate, regular hours, and overtime hours to see your 1.5× overtime rate and total pay.
  • Schengen 90/180 Day Stay Calculator
    Check your Schengen Area 90/180 rule compliance. Enter trips and a reference date to see days used in the trailing 180-day window and days remaining.
  • Passport Six-Month Validity Checker
    Check if your passport meets the 6-month validity rule for your trip. Enter travel and expiry dates to see if you can travel and your buffer in days.
  • Date Difference Calculator
    Find the number of days, weeks, months and years between two dates. Free date difference calculator showing the exact gap between any start and end date.
  • Minutes From Now Calculator
    Add any number of minutes to a starting time and get the result on a 24-hour clock, with automatic day carry past midnight. Fast and free.
  • Time Until Calculator
    Calculate the time remaining until a target clock time, including wraps past midnight. Get the countdown in HH:MM:SS, total minutes and total hours.
  • Hours to Seconds Calculator
    Convert hours to seconds instantly. Enter any number of hours and get the exact equivalent in seconds using seconds = hours × 3600.
  • Hours From Now Calculator
    Find out what time it will be a set number of hours from now. Enter a start time and hours to add — see the clock time and day carry instantly.
  • Business Days Until Date Calculator
    Count business days (Mon–Fri) until a target date, excluding weekends. See working days, calendar days, and weekend days between two dates.
  • Days Until Black Friday Calculator
    Count the days until the next Black Friday (the Friday after the 4th Thursday of November, US). Leave year blank for the next upcoming date.
  • Days Until School's Out Calculator
    Count down the days until summer break! Enter your last day of school and today's date to see exactly how many days and weeks until school's out.
  • Months Until Date Calculator
    Count how many months until a future date. Enter today's date and a target date to get complete calendar months, exact decimal months, and total days.
  • Days Until Tax Day Calculator
    Count the days until US Tax Day (April 15) from today or any date. See weeks and months remaining until the next IRS filing deadline.
  • Days Until School Starts Calculator
    Count down the days until the first day of school. Enter today's date and your school start date to see days and weeks remaining.
  • Days Until Mother's Day Calculator
    Count the days until Mother's Day, the 2nd Sunday in May. Pick any year and start date to find the exact date and countdown in days.

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