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2015 Calendar of Uposatha Days
2558-2559 BE
compiled by
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Shared by: Wat Metta (Californien, US.)
Edited by Samanera Johann
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Here are this year's dates of Uposatha days as observed in Thai Buddhism (Dhammayut and Mahānikai sects). This calendar follows the Dhammayut calculation—which, for the days marked with an asterisk*, is one day later than the Mahānikai. [1]

Data in squared brackets refer to the "real" full moon day and are in reference to Munich (Germany) as geographical place of observation. According Vinaya the day starts with sunrise and not like in "modern calculation of time" at 00:00 o'clock. This starting point of a new day is in regard to the place and its elevation different. As full-moon start at the same time everywhere on earth, it is possible that the day of full-moon accrues, in accordance with the calculation of moon-phases, differently. For comparison the data of Mondphasen - Table 2015, CET (wikipedia), as the sun rise calculations of www.gaisma.com have been used. If the "day of full-moon, according to Vinaya, is meant as the day when a full-moon accrues, or a day that follows the occasion of a full-moon, could not be investigated. Here the appearance of a certain moon event, at the time between sun rise and the next sun rise,was taken. See also Discussions about request of Uposatha-days.



  Full moon

Full moon

Last quarter moon

Last quarter moon

New moon

New moon

First quarter moon

First quarter moon

Full moon

Full moon

January 5* [4] 13* [13] 20* [20] 28* [27] -
February 3* [3]
Māgha Pūjā
11 [11] 18* [18] 26* [25] -
March 4 [5] 12 [13] 19 [20] 27 [27] -
April 3 [4] 11 [11] 18* [18] 26* [25] -
May 3* [3]
Visākha Pūjā
11* [11] 18* [18] 26* [25] -
June 1 [2] 9 [9] 16* [16] 24* [24] -
July 1* [1] 9* [8] 16* [15] 24* [24] 30 [31]
Āsaḷha Pūjā
August - 7 [6] 14 [14] 22 [22] 29 [29]
September - 6 [5] 13* [13] 21* [21] 28* [27]
Oktober - 6* [4] 12 [12] 20 [20] 27 [27]
Pavāraṇā Day
November - 4 [3] 11* [11] 19* [19] 26* [25]
Ānāpānasati Day
December - 4* [3] 10 [11] 18 [18] 25 [25]

Notes

1.
Dates provided by Metta Forest Monastery.

For an astronomical calendar of lunar phases, see Calendar-365.com.