Instantly add or subtract days, weeks, months, or years to any start date to find future or past target dates.
Track exactly how many days, hours, minutes, and seconds are left until Christmas Day.
Calculate your exact age in years, months, days, hours, and minutes based on your birth date.
Convert dates and times between global timezones dynamically to schedule meetings or coordinate across borders.
Determine your estimated due date, current gestational age, and trimester based on your last menstrual period (LMP).
Calculate the exact number of business days, weekend days, and custom holidays between two dates.
Compute total hours worked, overtime, and gross pay from daily clock-in/out times.
Convert standard 12-hour AM/PM times to 24-hour military clock and back instantly.
Convert Unix timestamps (seconds or milliseconds) to human-readable date-times and vice versa.
Calculate the real-time financial cost of a corporate meeting based on participants, rate, and duration.
A high-precision millisecond stopwatch featuring lap timing, custom splits, and state persistence.
Create a live countdown timer for your upcoming exams, vacations, birthdays, or product launches.
Use the Pomodoro technique to boost productivity with 25-minute study intervals and break reminders.
Estimate silent reading time and spoken presentation duration for any block of text.
Convert hours and minutes to decimal formats (and vice-versa) for billing, invoicing, and timesheets.
Find the ISO week number for any date, and view the start and end dates of that week.
Estimate total watch times for a list of video durations across multiple playback speeds (1x, 1.25x, 1.5x, 2x).
Predict baby gender using the ancient Chinese Lunar conception calendar chart.
Predict next period cycles, ovulation schedules, and fertile windows for the upcoming months.