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Numio

Vietnamese Lunar Calendar Converter — Numio

Convert solar dates to Vietnamese lunar dates and back, with the Can Chi year and day names. Leap months are marked. Runs in your browser.

Convert in your browser · No sign-up

Converts between solar (dương lịch) and Vietnamese lunar (âm lịch) dates, with Can Chi names.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

Result

Add your input or load an example, then run the tool. Your result will appear here.

How to use

  1. Type the date as YYYY-MM-DD.
  2. Choose Solar to lunar or Lunar to solar.
  3. For a lunar date that falls in a leap month, choose Yes for Leap month, then read the result.

Example

2026-10-21 → Lunar date: 12/9/2026, Year (Can Chi): Bính Ngọ, Day (Can Chi): Mậu Thìn

Details and limitations

The calculation uses the Hồ Ngọc Đức method at UTC+7. Results can differ from some printed almanacs.

Use an official almanac for legal, religious or ceremonial dates.

FAQ

What is Can Chi?

Can Chi is the traditional sixty-year cycle that names each year and day, such as Bính Ngọ for 2026.

Is my date uploaded?

No. The conversion runs in your browser.

Format references

Tool page updated: