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| Years in the Atomic|
and Gregorian calendars
|1 BT||1944-1945||50 AE||1995-1996|
|0 AE||1945-1946||54 AE||1999-2000|
|1 AE||1946-1947||71 AE||2016-2017|
|2 AE||1947-1948||72 AE||2017-2018|
|5 AE||1950-1951||73 AE||2018-2019|
|10 AE||1955-1956||75 AE||2020-2021|
|25 AE||1970-1971||100 AE||2045-2046|
| Calendar start in italics|
Current Atomic year in boldface
The Atomic Calendar is a calendar used by the Federal Commonwealth of Sirocco. Introduced on 19 December 2012 and formally adopted on 16 July 2013, the calendar honours Sirocco's heavily Atomic Age-inspired culture by beginning on 16 July 1945, the date of the Trinity nuclear test.
The current Atomic year is 72 AE, which runs from 16 July 2017 to 15 July 2018, and is the third year of the 70s decade, which began on 16 July 2015 (1 Trinity 70 AE) and will end on 15 July 2025 (31 Julin 79 AE).
| Leap years in the Atomic|
and Gregorian calendars
|42 AE||1987-1988||70 AE||2015-2016|
|46 AE||1991-1992||74 AE||2019-2020|
|50 AE||1995-1996||78 AE||2023-2024|
|54 AE||1999-2000||82 AE||2027-2028|
|58 AE||2003-2004||86 AE||2031-2032|
|62 AE||2007-2008||90 AE||2035-2036|
|66 AE||2011-2012||94 AE||2039-2040|
|Next Atomic leap year in boldface|
Although devised in late 2012, the Atomic Calendar officially begins on 16 July 1945, the date of the first man-made nuclear explosion; thus the year begins on 16 July ends on 15 July. The calendar also contains a year zero, in this case the calendar year of 16 July 1945 to 15 July 1946. This was followed by the year 1 which ran from 16 July 1946 to 15 July 1947 and so forth. While there was some initial confusion on whether to begin the calendar at 0 AE or 1 AE, it was decided that the former would be used after being recommended by Quentin I of Wyvern.
Years from 16 July 1945 onwards are given the suffix AE (Atomic Era), for example the calendar year of 16 July 2012 to 15 July 2013 is the Atomic year 67 AE. Dates preceding 16 July 1945 are given the suffix BT (Before Trinity), in this sense the calendar year 16 July 1944 to 15 July 1945 is considered the year 1 BT. Suffixes are mainly used when Gregorian or pre-Atomic dates are listed in the same material, whereas they are generally omitted if Atomic dates are the only ones present.
Weeks in the calendar also function somewhat differently. 16 July is always the first day of the first week of the calendar regardless of what day of the week, whilst 15 July is always the final day of the final week regardless of its day. For example, in the year 67 AE (2012–13) week 1 runs from 16 July 2012 to 21 July 2012, while week 53 runs from 14 July 2013 to 15 July 2013. No week ever spans more than the one year, so while Monday, 15 July 2013 may be constituted as week 53 of 67 AE, Tuesday, 16 July 2013 is the start of week 1 of 68 AE, which due to the calendar's Sunday basis, runs through to Saturday, 20 July 2013, after which it is followed by week 2, which runs from Sunday, 21 July to Saturday, 27 July. An exception to this rule lies in bookkeeping, where weeks 1 and 53 are combined to simplify records.
Months of the year
The twelve months of the Atomic Calendar are derived from significant U.S. and British atomic tests, as well as sites and projects associated with atomic tests of the time. Months are comprised of between 28 and 31 days.
|1||Trinity||T, Tr, Tri||31||16 July to 15 August|
|2||Baker||B, Ba, Bak||31||16 August to 15 September|
|3||Hurricane||H, Hu, Hur||30||16 September to 15 October|
|4||Grable||G, Gr, Gra||31||16 October to 15 November|
|5||Castle||C, Ca, Cas||30||16 November to 15 December|
|6||Argus||A, Ar, Arg||31||16 December to 15 January|
|7||Plowshare||Pl, Plo||28 or 29||16 January to 12 or 13 February|
|8||Sedan||S, Se, Sed||31||13 or 14 February to 15 March|
|9||Prime||Pr, Pri||30||16 March to 14 April|
|10||Manhattan||M, Ma, Man||31||15 April to 15 May|
|11||Nevada||N, Ne, Nev||30||16 May to 14 June|
|12||Julin||J, Ju, Jln||31||15 June to 15 July|
In the event of a leap year, the month of Plowshare is extended by one day. Instead of starting on 13 February, Sedan begins on 14 February and remains one day behind until 1 March when it is aligned back to the Gregorian calendar. Note in this case that the leap day is 13 February, not 29 February - 29 February would fall on 16 Sedan.
Seasons are given as Southern Hemisphere/Northern Hemisphere.
As part of Siroccan culture
Sirocco's Atomic Age culture is a nostalgic recreation of the United States of America during the first twenty years of the Atomic calendar (0-19 AE, 1945-1965 in the Gregorian calendar).
- Dates in the Atomic Calendar will be one day later than standard between 29 Plowshare (13 February) and 16 Sedan (29 February) in the event of a leap year. The calendar is balanced again from 17 Sedan (1 March) onward.