Tibetan Phugpa conversion

Tibetan Phugpa Date Converter

Convert Gregorian dates into Tibetan Phugpa calendar dates, including leap months and duplicated lunar days, or convert explicit Phugpa input back into Gregorian dates.

Live output

Result

Ready to convert

Choose a direction, enter a Gregorian date or explicit Tibetan Phugpa input, and the result appears here without leaving the page.

Guide

Convert Tibetan Phugpa dates and Gregorian dates

This Tibetan Phugpa Date Converter changes Gregorian dates into Tibetan Phugpa calendar dates and converts explicit Phugpa input back into Gregorian dates. It is built for the Phugpa system rather than a generic Tibetan or East Asian lunisolar approximation.

Reverse input uses CYCLE-YEAR-MONTH-DAY. Add -M for a leap month, -D for a duplicated lunar day, or -M-D when both markers apply. Those markers are part of the date, not optional commentary.

The implementation follows Phugpa mathematical formulas and validates reverse input against the produced calendar fields. It is a calculation tool, not a monastery-specific almanac or ritual calendar.

What it handles

Tibetan Phugpa conversion coverage

The converter supports Gregorian to Tibetan Phugpa and Tibetan Phugpa to Gregorian conversion. Results include cycle, year, month, day, leap-month state, duplicated-day state, and weekday.

Leap months and duplicated lunar days are represented separately because the Phugpa calendar can require both kinds of markers. The reverse converter rejects combinations that the formulas do not produce.

Gregorian to Tibetan

Enter a Gregorian date and return the matching Tibetan Phugpa cycle, year, month, and day.

Tibetan to Gregorian

Enter CYCLE-YEAR-MONTH-DAY with optional -M and -D markers and convert it back to Gregorian.

Phugpa-specific validation

The converter validates leap-month and duplicated-day markers against the Phugpa formula output.

How to use

Use the Tibetan Phugpa conversion modes

Choose Gregorian to Tibetan when your source is a Gregorian date. Choose Tibetan to Gregorian when you have a Phugpa cycle-year-month-day value.

Do not remove -M or -D markers from a source date. They distinguish leap months and duplicated lunar days, and omitting them changes the date being converted.

Choose Gregorian to Tibetan

Use this direction for Gregorian 2026-06-30. The verified output is 17-40-05-16.

Choose Tibetan to Gregorian

Use this direction for input such as 17-40-05-16. Add -M or -D only when the source date includes those markers.

Keep Phugpa separate from other Tibetan systems

This page is for Phugpa mathematics. Other Tibetan calendar traditions can require different assumptions.

Examples

Reference conversions from the local implementation

These examples are produced by the same Phugpa conversion functions used by the form. They show the accepted reverse-input syntax and the matching Gregorian round trip.

Gregorian date to Tibetan Phugpa date

2026-06-30 -> 17-40-05-16

The Gregorian date 2026-06-30 converts to Tibetan Phugpa 17-40-05-16.

Tibetan Phugpa date to Gregorian date

17-40-05-16 -> 2026-06-30

The Tibetan Phugpa input 17-40-05-16 converts back to Gregorian 2026-06-30.

FAQ

Tibetan Phugpa conversion notes

Tibetan calendar conversion has specialized terminology and multiple traditions. These answers keep the page tied to the Phugpa formula implementation.

What do -M and -D mean?

-M marks a leap month and -D marks a duplicated lunar day. Use both only when both markers apply.

Is this any Tibetan calendar?

No. The page is specifically for the Tibetan Phugpa system and should not be treated as a universal Tibetan calendar converter.

Does this replace an almanac?

No. It is a mathematical conversion page, not a monastery-specific almanac or ritual schedule.

Reference

Calendar implementation reference

The implementation is based on Phugpa calendar mathematics and source-backed formula work. The page states this basis so users do not mistake it for a generic East Asian lunar converter.