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| 1 | +# Version 2020.3 |
| 2 | +Upstream version 2020c release 2020-10-16T18:15:53+00:00 |
| 3 | + |
| 4 | +## Briefly: |
| 5 | + |
| 6 | +Fiji starts DST later than usual, on 2020-12-20. |
| 7 | + |
| 8 | +## Changes to future timestamps |
| 9 | + |
| 10 | +Fiji will start DST on 2020-12-20, instead of 2020-11-08 as previously |
| 11 | +predicted. DST will still end on 2021-01-17. (Thanks to Raymond Kumar and Alan |
| 12 | +Mintz.) Assume for now that the later-than-usual start date is a one-time |
| 13 | +departure from the recent pattern. |
| 14 | + |
| 15 | +--- |
| 16 | + |
| 17 | +# Version 2020.2 |
| 18 | +Upstream version 2020b release 2020-10-07T01:35:04+00:00 |
| 19 | + |
| 20 | +## Briefly: |
| 21 | + |
| 22 | +Revised predictions for Morocco's changes starting in 2023. Canada's Yukon |
| 23 | +changes to -07 on 2020-11-01, not 2020-03-08. Macquarie Island has stayed in |
| 24 | +sync with Tasmania since 2011. Casey, Antarctica is at +08 in winter and +11 in |
| 25 | +summer. zic no longer supports -y, nor the TYPE field of Rules. |
| 26 | + |
| 27 | +## Changes to future timestamps |
| 28 | + |
| 29 | +Morocco's spring-forward after Ramadan is now predicted to occur no sooner than |
| 30 | +two days after Ramadan, instead of one day. (Thanks to Milamber.) The first |
| 31 | +altered prediction is for 2023, now predicted to spring-forward on April 30 |
| 32 | +instead of April 23. |
| 33 | + |
| 34 | +## Changes to past and future timestamps |
| 35 | + |
| 36 | +Casey Station, Antarctica has been using +08 in winter and +11 in summer since |
| 37 | +2018. The most recent transition from +08 to +11 was 2020-10-04 00:01. Also, |
| 38 | +Macquarie Island has been staying in sync with Tasmania since 2011. (Thanks to |
| 39 | +Steffen Thorsen.) |
| 40 | + |
| 41 | +## Changes to past and future time zone abbreviations and DST flags |
| 42 | + |
| 43 | +Canada's Yukon, represented by America/Whitehorse and America/Dawson, changes |
| 44 | +its time zone rules from -08/-07 to permanent -07 on 2020-11-01, not on |
| 45 | +2020-03-08 as 2020a had it. This change affects only the time zone abbreviation |
| 46 | +(MST vs PDT) and daylight saving flag for the period between the two dates. |
| 47 | +(Thanks to Andrew G. Smith.) |
| 48 | + |
| 49 | +## Changes to past timestamps |
| 50 | + |
| 51 | +Correct several transitions for Hungary for 1918/1983. For example, the |
| 52 | +1983-09-25 fall-back was at 01:00, not 03:00. (Thanks to Géza Nyáry.) Also, the |
| 53 | +1890 transition to standard time was on 11-01, not 10-01 (thanks to Michael |
| 54 | +Deckers). |
| 55 | + |
| 56 | +The 1891 French transition was on March 16, not March 15. The 1911-03-11 French |
| 57 | +transition was at midnight, not a minute later. Monaco's transitions were on |
| 58 | +1892-06-01 and 1911-03-29, not 1891-03-15 and 1911-03-11. (Thanks to Michael |
| 59 | +Deckers.) |
| 60 | + |
| 61 | +## Changes to documentation and commentary |
| 62 | + |
| 63 | +The long-obsolete files pacificnew, systemv, and yearistype.sh have been removed |
| 64 | +from the distribution. (Thanks to Tim Parenti.) |
| 65 | + |
| 66 | +--- |
| 67 | + |
| 68 | +# Version 2020.1 |
| 69 | +Upstream version 2020a release 2020-04-23T23:03:47+00:00 |
| 70 | + |
| 71 | +## Briefly: |
| 72 | + |
| 73 | +Morocco springs forward on 2020-05-31, not 2020-05-24. Canada's Yukon advanced |
| 74 | +to -07 year-round on 2020-03-08. America/Nuuk renamed from America/Godthab. zic |
| 75 | +now supports expiration dates for leap second lists. |
| 76 | + |
| 77 | +## Changes to future timestamps |
| 78 | + |
| 79 | +Morocco's second spring-forward transition in 2020 will be May 31, not May 24 as |
| 80 | +predicted earlier. (Thanks to Semlali Naoufal.) Adjust future-year predictions |
| 81 | +to use the first Sunday after the day after Ramadan, not the first Sunday after |
| 82 | +Ramadan. |
| 83 | + |
| 84 | +Canada's Yukon, represented by America/Whitehorse and America/Dawson, advanced |
| 85 | +to -07 year-round, beginning with its spring-forward transition on 2020-03-08, |
| 86 | +and will not fall back on 2020-11-01. Although a government press release calls |
| 87 | +this "permanent Pacific Daylight Saving Time", we prefer MST for consistency |
| 88 | +with nearby Dawson Creek, Creston, and Fort Nelson. (Thanks to Tim Parenti.) |
| 89 | + |
| 90 | +## Changes to past timestamps |
| 91 | + |
| 92 | +Shanghai observed DST in 1919. (Thanks to Phake Nick.) |
| 93 | + |
| 94 | +## Changes to timezone identifiers |
| 95 | + |
| 96 | +To reflect current usage in English better, America/Godthab has been renamed to |
| 97 | +America/Nuuk. A backwards-compatibility link remains for the old name. |
| 98 | + |
| 99 | +## Changes to commentary |
| 100 | + |
| 101 | +The Îles-de-la-Madeleine and the Listuguj reserve are noted as following |
| 102 | +America/Halifax, and comments about Yukon's "south" and "north" have been |
| 103 | +corrected to say "east" and "west". (Thanks to Jeffery Nichols.) |
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