Time and Date

  • Days to Hours Calculator
    Convert days to hours instantly with this free Days to Hours Calculator. Enter any number of days and get the exact total hours using hours = days × 24.
  • Intermittent Fasting Window Calculator
    Plan your intermittent fasting schedule. Enter your eating window start time and pick 16:8, 18:6, 20:4 or 14:10 to see when fasting begins and ends.
  • Time Zone Difference Calculator
    Calculate the time difference between two time zones using UTC offsets, and convert an origin local time into the destination's local time instantly.
  • How Many Days Old Am I?
    Find out exactly how many days, weeks, and hours old you are. Enter your birthdate and a reference date to calculate your age in days.
  • Seed Starting Date Calculator
    Find exactly when to start seeds indoors. Enter your last frost date and the weeks-before figure from your seed packet to get the sowing date.
  • Minutes to Seconds Calculator
    Convert minutes to seconds instantly. Enter any number of minutes and get the exact equivalent in seconds using seconds = minutes × 60.
  • Seconds to Hours Calculator
    Convert seconds to hours instantly. Enter any number of seconds and get the exact hours (and minutes) using hours = seconds ÷ 3600.
  • Meeting Time Across Time Zones Calculator
    Convert a meeting time from one city to another using UTC offsets. Instantly see the local time in City B and whether it falls on a different day.
  • Countdown to New Year Calculator
    Find out exactly how many days, hours, minutes and seconds remain until January 1 of next year from any chosen date and time.
  • Countdown to Date Calculator
    Countdown to any date and time. See the exact days, hours, minutes and seconds remaining — or how long ago a past date occurred.
  • Days Until Christmas Calculator
    Find out how many days until Christmas (December 25). Enter any start date for an instant countdown showing days and weeks until the holiday.
  • Work Hours Calculator with Lunch Break
    Calculate net work hours from clock-in and clock-out times after subtracting your lunch break. Supports overnight shifts. Free and instant.
  • Monthly Work Hours Calculator
    Calculate total monthly work hours from working days and hours per day, plus estimated monthly pay from your hourly rate. Fast and free.
  • UTC to China Standard Time Converter
    Convert UTC time to China Standard Time (CST, UTC+8) instantly. Enter UTC hour and minute to get the China time, with same-day or next-day indication.
  • UTC to EDT Converter
    Convert UTC time to Eastern Daylight Time (EDT) instantly. EDT = UTC − 4 hours. Enter the UTC hour and minute to get the matching US Eastern clock time.
  • Unix Timestamp to Time Converter
    Convert any Unix timestamp (epoch seconds) into a UTC date and time — year, month, day, hour, minute, second, and day of the week, instantly.
  • UTC to Local Time Converter
    Convert UTC time to your local time for any UTC offset. Enter the UTC hour, minute, and offset to get the local 24-hour clock time instantly.
  • UTC to JST Converter
    Convert UTC time to Japan Standard Time (JST) instantly. JST is always UTC+9 with no daylight saving. Enter the UTC hour and minute to get JST.
  • EST to IST Time Converter
    Convert Eastern Standard Time (EST) to India Standard Time (IST) instantly. IST is 10 hours 30 minutes ahead of EST. Enter any EST time.
  • GMT to IST Converter
    Convert GMT (Greenwich Mean Time) to IST (India Standard Time) instantly. IST = GMT + 5:30 hours, with automatic day rollover handling.
  • PST to IST Converter
    Convert PST (Pacific Standard Time) to IST (India Standard Time) instantly. IST is 13 hours 30 minutes ahead of PST. Enter any time to get the result.
  • GMT to PST Converter
    Convert GMT/UTC time to Pacific Standard Time (PST) instantly. PST = GMT − 8 hours, with automatic day-wrap handling for any hour and minute.
  • Half Your Age Plus Seven Dating Rule Calculator
    Apply the popular "half your age plus seven" dating rule. Enter your age to find the youngest and oldest partner age considered socially acceptable.
  • How Old Will I Be On a Future Date?
    Find out exactly how old you'll be on any future date. Enter your birthday and a target date to get your age in years, months and days.

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