Tazaungmon Full Moon Day

The Tazaungdaing Festival (Burmese: တန်ဆောင်တိုင်ပွဲတော်, also known as the Festival of Lights and spelt Tazaungdine Festival), held on the full moon day of Tazaungmon, the eighth month of the Burmese calendar, is celebrated as a national holiday in Burma (Myanmar) and marks the end of the rainy season.[2][3] It also marks the end of the Kathina (Kahtein in Burmese) season, during which monks are offered new robes and alms. via Wikipedia