HMEPA
Hellenic Month Established Per Athens

Ποσειδεών
1st year of the 110th Olympiad

new 13:05 -340/12/13 UTC
1 -340-12-14/15 Νουμηνία	2 -340-12-15/16 Ἀγαθόσ Δαίμων	3 -340-12-16/17 Ἀθήνη	4 -340-12-17/18 Ἀφροδίτη, Ἠρακλέησ, Ἑρμῆσ καὶ Ἒροσ	5 -340-12-18/19 Πληρώσια	6 -340-12-19/20 Ἂρτεμισ 10:43 12/20	7 -340-12-20/21 Ἀπόλλων	8 -340-12-21/22 Ποσειδῶν καὶ Θησεύσ	9 -340-12-22/23	10 -340-12-23/24 Διονύσια τὰ τατ' αγρούσ
11 -340-12-24/25 solstice 13:29 -340/12/25 UTC	12 -340-12-25/26	13 -340-12-26/27 13:18 12/27	14 -340-12-27/28	15 -340-12-28/29	16 -340-12-29/30 Ζεύσ Ὂριοσ	17 -340-12-30/31	18 -340-12-31/-339-01-01	19 -339-01-01/02	20 -339-01-02/03
	21 -339-01-03/04 14:51 01/04	22 -339-01-04/05	23 -339-01-05/06	24 -339-01-06/07	25 -339-01-07/08	26 -339-01-08/09 Ἁλωά	27 -339-01-09/10	28 -339-01-10/11	29 -339-01-11/12 Τριακάσ, Ἒνη καὶ Νέα 02:00 01/12
solstice 13:29 -340/12/25 UTC						10:43 -340/12/20 UTC	13:18 -340/12/27 UTC	14:51 -339/01/04 UTC	02:00 -339/01/12 UTC

The crescent:			visible in Athens on this day.
	may be	is

Moon phase and solar year events are shown on the day in Athens. If your sunset occurs later than sunset in Athens, the event may occur on the previous day; if your sunset occurs earlier than sunset in Athens, the event may occur on the next day. Know your local sunset time in UTC and compare that to the time given to know which day the event falls on for you.

UTC is "Coordinated Universal Time", commonly called Greenwich Mean Time. See http://physics.nist.gov/GenInt/Time/world.html for information.