A new snapshot every day
Daily World Briefing
Seventeen cities, checked right now: who's hottest, who's coldest, whose day is longest, tonight's moon, and which clocks are about to change.
Loading today's numbers…
Hottest & coldest
Checking current temperatures…
Longest & shortest day
Comparing today's daylight…
Daylight saving coming up
Scanning the next 21 days…
What this page tracks
Every metric above is pulled live each time you load the page — nothing is written ahead of time. The temperature and daylight numbers come from the same 17 cities featured across WatchTime Online's world clock and city pages, using live data from Open-Meteo. The moon phase is calculated locally from the current date using the standard synodic month, so it's accurate wherever you are. The clock watch scans each city's real UTC offset for the next three weeks to flag any daylight saving transition before it happens.
Bookmark this page if you want a quick daily read on how the world's clocks and weather compare — it changes a little every day, especially the temperature and daylight rankings.
How often does this page update?
Every time you load it. There's no caching delay — the temperature, sunrise/sunset, and moon phase are all calculated fresh on each visit.
Why only 17 cities?
These are the same cities WatchTime Online maintains dedicated time zone pages for, so the comparison stays consistent with the rest of the site.
Where does the weather data come from?
Open-Meteo, a free weather API that doesn't require an account or API key — the same source used on WatchTime Online's Weather tool and city pages.