World Clock Deluxe is now ready for macOS 10.13 High Sierra.
The offset from UTC and daylight-saving time information of Namibia have been updated. Namibia canceled DST and at 2:00 AM on September 3, 2017, when daylight-saving time would have started, moved from West Africa Time (UTC+1) to Central Africa Time (UTC+2).
Daylight-saving time information for Fiji has been updated. Fiji will end daylight-saving time on January 14, 2018.
The Look Up Weather Station Indicator command has been restored. Weather station indicators can now be looked up on the Aviation Codes Central website.
Cities, Time Zones, DST Rules 4.15.4.1 - November 2017
The offset from UTC of Sudan has been updated. Sudan moved from East Africa Time (UTC+3) to Central Africa Time (UTC+2) on November 1, 2017.
Daylight-saving time information for Macquarie Island in Tasmania, Northern Cyprus, and Tonga has been updated. Macquarie Island uses Australian Eastern Time and observes DST following the Australian rule. Northern Cyprus restored winter and summer time, canceling daylight-saving time all year round. Tonga is supposed not to repeat last year's daylight-saving time trial.
Cities, Time Zones, DST Rules 4.15.4.2 - January 2018
The offset from UTC of São Tomé and Príncipe has been updated. São Tomé and Príncipe moved from GMT to West Africa Time (UTC+1) on January 1, 2018.
Daylight-saving time information for Brazil, Morocco, and Western Sahara has been updated. From this year, DST in Brazil will start two weeks later, on the first Sunday in November. Morocco and Western Sahara will suspend daylight-saving time during Ramadan, presumably from May 13 to June 17, 2018.
Cities, Time Zones, DST Rules 4.15.4.3 - March 2018
The offset from UTC and daylight-saving time information of the Turks and Caicos Islands have been updated. The Turks and Caicos Islands reintroduced DST following the United States rule and moved from Atlantic Standard Time (UTC-4) to Eastern Daylight Time (UTC-4) at 2:00 AM on March 11, 2018.
The offset from UTC of the Antarctic stations Casey and Concordia has been updated. With winter approaching in the southern hemisphere, both stations moved from UTC+11 to UTC+8.
Daylight-saving time information for Palestine has been updated. Daylight-saving time in Palestine will start one week earlier this year, at 1:00 AM on Saturday, March 24, 2018.
Cities, Time Zones, DST Rules 4.15.4.4 - May 2018
The offset from UTC of North Korea has been updated. On May 5, North Korea moved back to Korean Standard Time (UTC+9), so that now South and North Korea observe again the same time.