Date & Time

Available Date & Time (20 Utilities)

• Age Calculator

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

• Date Difference Calculator

  Calculate the exact number of days, weeks, months, and years between two dates.

• Business Days Calculator

  Count working days (Monday–Friday) between dates, excluding weekends and custom holidays.

• Days Until Date Calculator

  Find out exactly how many days are left until any upcoming date, holiday, or birthday.

• Event Countdown Timer

  Live ticking countdown clock down to the second for product launches and milestones.

• Week Number Calculator

  Find the ISO 8601 week number, start date, and end date for any calendar date.

• Day of the Year Calculator

  Find the ordinal day number (1–366) and remaining days in the calendar year.

• Leap Year Checker

  Check if any calendar year is a leap year with 366 days and astronomical explanation.

• Time Difference Calculator

  Calculate exact hours, minutes, and seconds between two time stamps.

• Time Duration Adder & Subtractor

  Add or subtract multiple hours, minutes, and seconds to calculate total time logs.

• 12 / 24 Hour Time Converter

  Convert standard 12-hour AM/PM time into military 24-hour clock and vice versa.

• Unix Timestamp Converter

  Convert Unix epoch timestamps (seconds & milliseconds) to human-readable UTC and local time.

• Timestamp to Date Converter

  Convert numeric timestamps into formatted date strings across custom formats.

• Date to Timestamp Converter

  Convert human calendar dates and times into Unix epoch timestamps.

• Monthly Calendar Generator

  Generate and print clean, customizable monthly calendar grids for any year.

• World Time Converter

  Compare and convert times across global timezones (UTC, EST, PST, GMT, JST, CET).

• Precision Stopwatch

  High-precision stopwatch with millisecond accuracy and split lap recording.

• Pomodoro Focus Timer

  Customizable 25-minute Pomodoro study & productivity timer with short and long breaks.

• Fiscal & Calendar Quarter Calculator

  Find financial quarters (Q1, Q2, Q3, Q4) and quarter date ranges for any date.

• Daylight & Solar Time Estimator

  Estimate approximate sunrise, sunset, solar noon, and total daylight hours by latitude.