Date & Time
Leap Year Calculator
Determine if any year is a leap year using the Gregorian calendar rules. See the next and previous leap years and understand why leap years exist.
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Calculate date differences, add or subtract days, and convert between time zones
Determine if any year is a leap year using the Gregorian calendar rules. See the next and previous leap years and understand why leap years exist.
Convert between Unix timestamps and human-readable dates. Works with timestamps in seconds or milliseconds, showing UTC and local time.
Find the day of the week for any date, past or future. Perfect for planning events, historical research, or satisfying curiosity.
Discover fascinating facts about your birthday. Find out what day of the week you were born, your zodiac signs, age, and days until your next birthday.
Calculate your exact age in years, months, and days from your date of birth. Also shows total days lived and days until your next birthday.
Calculate the exact number of days between two dates including total days, weeks, business days, weekend days, and total hours. Useful for project planning and deadlines.
Calculate the exact difference between two dates in years, months, days, total days, and total weeks.
Plan meetings across time zones by converting your meeting time to multiple zones simultaneously. Check if all participants are within business hours.
Add or subtract a number of days from any date with an option to skip weekends. Find the exact date that falls a specific number of days before or after your chosen date.
Calculate your next pay date, gross pay per period, and estimated net pay based on your salary, pay frequency, and last pay date. Plan your finances around your pay schedule.
Track your PTO balance and plan your vacation days. Calculate remaining days, future accruals, and the ideal usage rate to maximize your time off throughout the year.
Calculate the duration between a start time and end time in hours, minutes, and total minutes. Handles overnight time spans automatically.
Calculate how many days, weeks, months, and hours remain until a target date. Perfect for countdowns to events, deadlines, and milestones.
Calculate the number of business days (Monday through Friday) between two dates. Shows total days, business days, and weekend days separately.
Convert a time from one UTC offset to another. Enter a time and the source and destination UTC offsets to see the converted time and time difference.
Calculate total hours and net hours worked between a start and end time, with optional break time deduction in minutes.
Calculate total hours, regular hours, overtime hours, and gross pay from time card entries. Overtime is calculated at 1.5x for hours exceeding 40 per week.
Count down to any event with precision. See exactly how many days, hours, minutes, and seconds remain until your target date and time.
Calculate total work hours for any period. Enter your daily hours and number of work days to get total hours, minutes, and equivalent weeks.
Calculate ideal bedtime or wake time based on 90-minute sleep cycles. Wake up feeling refreshed by timing your sleep to complete full cycles.
Count down to your retirement date. See exactly how many years, months, days, and working days remain until you retire.
Discover fascinating facts about your birthday. Find out what day of the week you were born, your zodiac signs, age, and days until your next birthday.
Find the day of the week for any date, past or future. Perfect for planning events, historical research, or satisfying curiosity.
Convert between Unix timestamps and human-readable dates. Works with timestamps in seconds or milliseconds, showing UTC and local time.
Determine if any year is a leap year using the Gregorian calendar rules. See the next and previous leap years and understand why leap years exist.