Date & Time
D-Day, Days Between Dates, Timer, Stopwatch and more
Date Calculator
Count the days remaining until a target date or elapsed since a past date. Free date calculator for birthdays, exams, events and milestones.
Days Between Dates
Calculate the exact number of days between two dates. Free date difference calculator for project durations, rental periods and age counting.
Time Zone Converter
Convert times across world time zones instantly. Compare EST, PST, GMT, JST, KST and more with automatic daylight saving adjustment.
Day of Week
Find the day of the week for any past or future date. Check what day your birthday falls on, verify historical dates and plan events ahead.
Time Duration
Calculate the elapsed time between two times in hours, minutes and seconds. Free time duration calculator for work hours, travel and sleep.
Week Number
Find the ISO 8601 week number for any date. Free week number calculator for project planning, scheduling and calendar management.
Add/Subtract Days
Add or subtract days from any date to get the resulting date and weekday. Free day calculator for deadlines, travel plans and contract dates.
Business Days
Count business days between two dates, excluding weekends and public holidays. Free working day calculator for deadlines, shipping and contracts.
Unix Timestamp
Convert between Unix timestamps and human-readable dates instantly. Free Epoch time converter for programming, debugging and data analysis.
Countdown Timer
Set a countdown timer for any duration. Perfect for cooking, workouts, exams, presentations, and any situation where you need to track remaining time.
Stopwatch
A precise online stopwatch with lap time recording, pause, and resume features. Ideal for sports, cooking, experiments, and any time measurement needs.
Pomodoro Timer
A free Pomodoro timer that runs 25-minute focus sessions and 5-minute breaks automatically. Boost concentration and track your work cycles.