JST is the zone identifier the paper uses for Japan Standard Time; on this date the clocks there read UTC+09:00, which is 1 hour ahead of Singapore (Singapore keeps UTC+08:00 all year). The cities the paper lists in this zone are Tokyo · Osaka · Yokohama · Nagoya.
At the zone's reference point the sun rises at 05:22 and sets at 17:50 on 14 September 2026, a day of 12h 28m.
In the paper, this page carries a ticking analog sky-clock whose dial follows the zone's own dawn, day, dusk and night, the digital time to the second, the day's length and how it compares with yesterday, golden hour, and the moon's phase — all computed in the browser from the zone's coordinates, with no data fetched. The live page needs a script to run; this page is the still version of it.