Convert Unix timestamps (seconds or milliseconds) to readable dates and back. A fast, free, and essential tool for developers working with epoch time, logs, and APIs.

Calculate age in years, months, and days from any birthdate. Get next birthday countdown, zodiac sign, and total time lived. Simple, fast, and accurate age tool.

Free date calculator — add or subtract days, weeks, months, or years from any date. Calculate the exact duration between two dates for scheduling and planning.

Set a countdown to any date/time. Real-time display, start/pause/reset options. Great for events, launches, and personal reminders. No login needed.