Most people who have been living in Singapore all their lives wouldn’t know this: Singapore is in the wrong timezone. To be precise, Singapore should be in the GMT +7 timezone, but we are using the GMT +8 instead. This means that, for instance, 7am in the current time is actually supposed to be 6am.
I only realized it myself after googling, and only after some suspicions after going overseas: Comparatively, why does the sun rise in Singapore so late (around 7am), and why does the sun set in Singapore so late (around 7pm). In Singapore, it is common that the day is still very bright at 7pm. At first I attributed it to the fact that Singapore is in the equator and hence experiences “summer” all year round. It turns out that a bigger reason may be the wrong GMT timezone.
In this article: Singapore’s time zone biggest contributor to sleeplessness problem, it is argued that being in the wrong timezone causes lots of problems, such as sleeplessness. This is because the body’s true time (circadian rhythm) is out of sync of the “fake” GMT +8 time.
The biggest issue may be the time school starts for school going children. In most schools, the morning assembly starts at around 7.30am. Depending on where the children live and their mode of transport, it is common for children to have to wake up at around 5.30am. By the previous logic, this corresponds to the true time of 4.30am!