Time & Date Calculators

Calculate exact age in years, months, days, hours, minutes, and seconds from birth date.

Calculate date differences, add/subtract days, and find specific dates with advanced options.

Convert times between different timezones and calculate time differences worldwide.

Calculate working hours, overtime, time tracking, and payroll calculations.

Convert between different time units: seconds, minutes, hours, days, weeks, months, years.

Create countdown timers for events, deadlines, and special occasions.

Find the week number of any date and calculate week ranges for any year.

Calculate business days between dates, excluding weekends and holidays.

Calculate sunrise and sunset times for any location and date.

Calculate moon phases, lunar calendar, and moon rise/set times.

Calculate date ranges, find overlapping periods, and manage schedules.

Calculate deadlines, project timelines, and time remaining for tasks.

Calculate flight duration, arrival times, and timezone adjustments for travel.

Calculate running pace, finish times, and race predictions.

Calculate interest accrual periods, maturity dates, and investment timelines.

Calculate due dates, pregnancy weeks, and important milestones.

Calculate academic terms, semester dates, and school year timelines.

Calculate holidays, vacation days, and time off planning.