1. Time Conversion

Built for developers and data processing, these tools convert Unix timestamps (seconds or milliseconds) to and from readable dates. Use the Timestamp Converter for batch conversion and multi-timezone handling, the Date to Timestamp tool to parse many input formats, and the Beijing Time page to read the current Unix timestamp live. Ideal for backend debugging, log analysis and data cleaning.

2. Calendar & Lunar Dates

Traditional calendar tools. Check 1900–2100 Gregorian/lunar dates in the Perpetual Calendar; view daily ganzhi and dos and don'ts in the Chinese Almanac; convert both ways with Solar to Lunar and Lunar to Solar; look up all 24 Solar Terms across the year; watch the Spring Festival Countdown to see the days left; see the current lunar date plus the next solar term or holiday countdown in Beijing Time; map ancient Chinese hours to modern time with Chinese Hours; cast birth charts and five elements in the Bazi Calculator; and look up zodiac animals, sound elements and ganzhi by year in Zodiac Years.

3. Clocks & Timers

Practical timers and clock-calibration tools. Beijing Time shows China Standard Time (UTC+8) to the millisecond, along with the lunar date, weekday, today/month/year progress and time differences to major world cities; Online Alarm sets reminders with 5-minute shortcuts or a custom time; Online Stopwatch offers millisecond timing and lap records; and World Clock shows the current time in more than 20 major cities.

4. Date Calculations

Date calculation and lookup tools. Age Calculator works out exact age, the traditional Chinese nominal age, and your zodiac sign and animal; Workday Calculator counts workdays while excluding weekends and public holidays; Weekday Lookup tells you the day of the week for any date; Retirement Calculator applies the 2025 delayed-retirement policy; Days Lived counts the time from birth to now; and 2026 Holiday Schedule shows this year's public holidays and makeup workdays.

Time Tools FAQ