HST to SGT
Convert Hawaii Time — Honolulu to Singapore Time — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Honolulu, it's 3:00 AM in Singapore. Singapore is 18 hours ahead of Honolulu. Use the converter above to turn any HST time into SGT, or scan the hour-by-hour table below for the full day.
HST to SGT at a glance
Planning a meeting between Honolulu and Singapore
Honolulu and Singapore share no standard 9-to-5 overlap, so a live call usually means one side taking an early-morning or late-evening slot. The hourly table below helps you pick the least-inconvenient time for everyone.
Hour-by-hour: Honolulu to Singapore
A full day mapped from HST to SGT.
Frequently asked
Is Singapore ahead of or behind Honolulu?
Singapore is 18 hours ahead of Honolulu.
What is 12:00 PM HST in SGT?
12:00 PM in Honolulu is 6:00 AM in Singapore.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so HST and SGT automatically reflect the correct daylight-saving offset for the current date.