World Clock Deluxe has adopted the new look of macOS. On Big Sur, windows and toolbars have been revised, lists have been made more spacious, and symbol images have been introduced.
The Clocks palette has a new translucent background and new controls and supports Dark Mode.
An incompatibility with Catalina that caused the World Clock Deluxe menu bar not to respond to mouse clicks at startup until the application was deactivated and reactivated has been solved.
The offset from UTC of the Antarctic stations Casey and Concordia has been updated. Both stations moved from UTC+8 to UTC+11.
Daylight-saving time information for Fiji, Iran, Morocco, Palestine, and Western Sahara has been updated. Fiji will observe DST from December 20, 2020 to January 17, 2021. Daylight-saving time in Palestine ended one week earlier this year, at 1:00 AM on Saturday, October 24, 2020. Iran will observe DST from March 22 to September 22 in 2021, 2022, and 2023. Next year Morocco and Western Sahara will switch from Western Europe Summer Time (UTC+1) to Western Europe Time (UTC) during Ramadan, presumably from April 11 to May 16, 2021.
Some other minor improvements have been introduced.