Category Toolkit
Date & Time Tools
Unix timestamp, date calculators, timezone converters, and more.
35 toolsLocal-first processingFree forever
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates.
yft.ai/unix-timestamp
Time Zone Converter
Convert times between different time zones worldwide.
yft.ai/timezone-converter
UTC to Local Time Converter
Convert UTC time to your local timezone automatically.
yft.ai/utc-to-local
Hours to Decimal Converter
Convert hours and minutes to decimal hours and vice versa.
yft.ai/hours-to-decimal
Date Difference Calculator
Calculate the difference between two dates in various units.
yft.ai/date-difference-calc
Add Days to Date
Add a number of days to any date and get the result.
yft.ai/add-days-to-date
Subtract Days from Date
Subtract days from a date to find a past date.
yft.ai/subtract-days-from-date
Day of Year Calculator
Find the day number (1-366) for any date in the year.
yft.ai/day-of-year
Week Number Calculator
Find the ISO week number for any given date.
yft.ai/week-number
Leap Year Checker
Check if a year is a leap year and find nearby leap years.
yft.ai/leap-year-checker
Countdown Calculator
Calculate time remaining until a future date or event.
yft.ai/countdown-calculator
Age in Days Calculator
Calculate your exact age in days, hours, and minutes.
yft.ai/age-in-days
Business Days Calculator
Calculate business days between dates excluding weekends.
yft.ai/work-days-calculator
Time Addition Calculator
Add multiple time durations (hours, minutes, seconds).
yft.ai/time-addition
Time Subtraction Calculator
Calculate the difference between two time values.
yft.ai/time-subtraction
Relative Time Calculator
Convert dates to relative time phrases (e.g., 3 days ago).
yft.ai/relative-time
Days Between Dates Calculator
Count the exact number of days between two dates.
yft.ai/days-between-dates
Months Between Dates Calculator
Calculate the number of months between two dates.
yft.ai/months-between-dates
Time Card Calculator
Calculate work hours from clock-in and clock-out times.
yft.ai/time-card-calculator
Meeting Time Finder
Find overlapping available hours across multiple time zones.
yft.ai/meeting-time-finder
Date to Day of Week Converter
Find the day of the week for any given date.
yft.ai/date-to-day
Decimal to Hours & Minutes Converter
Convert decimal hours to hours, minutes, and seconds.
yft.ai/decimal-to-hours
Epoch Time Converter
Convert between epoch timestamps and date strings.
yft.ai/epoch-converter
ISO 8601 Date Converter
Convert dates to and from ISO 8601 format.
yft.ai/iso-8601-converter
Military Time Converter
Convert between 12-hour and 24-hour military time format.
yft.ai/military-time
12-Hour to 24-Hour Converter
Convert 12-hour AM/PM time to 24-hour format and back.
yft.ai/12h-to-24h
Cron Expression Parser
Parse cron expressions and show next execution times.
yft.ai/cron-parser
Date Formatter
Format dates into various string patterns and locales.
yft.ai/date-formatter
Time Duration Formatter
Format time durations into human-readable strings.
yft.ai/time-duration-formatter
Online Stopwatch
Precise stopwatch with lap times and split tracking.
yft.ai/stopwatch
Online Timer
Countdown timer with alarm and customizable duration.
yft.ai/timer
Pomodoro Timer
Pomodoro technique timer with work and break intervals.
yft.ai/pomodoro-timer
Time Zone List
Browse all time zones with UTC offsets and abbreviations.
yft.ai/time-zone-list
World Clock
View current time in major cities around the world.
yft.ai/world-clock
Calendar Reference
View monthly calendars and look up dates for any year.
yft.ai/calendar-reference
About Date & Time Tools
Convert Unix timestamps, calculate date differences, transform between time zones, and work with various date and time formats. Our date and time tools help developers handle the complexities of temporal data, while everyday users can quickly find durations, schedule across time zones, and convert between formats.