Vietnamese festivals mapped to solar dates, 2026 to 2030

Conventions taken

The festival LIST is editorial data while the SOLAR DATE is computed by the engine, so the two halves of this table carry different confidence and the nguon column says which is which. Festivals with a fixed solar date keep that date every year; festivals on a lunar date are converted at UTC+7. Leap months: a festival falling in a lunar month that has a leap twin is placed in the MAIN month, not the leap one, as most places observe it. THE TABLE HAS NO PROVINCE OR COORDINATES: the festival store does not hold those fields, and inventing a coordinate for a festival is telling someone the wrong place to travel to. That is content entry, not computation, so it waits on the editors rather than on code.