Difference time between Singapore and United States of America in hours, minutes, and seconds is [ +12 hours ] with gregorian date today is Friday 21st of August 2026 in Singaporean local time, Where the time now in Singapore is 00:17 AM and the time now in United States of America is 12:17 PM in American local time and the time comparison between Republic of Singapore and United States of America in greenwich time ( GMT ) where Singapore advanced about greenwich time ( GMT +08:00 ) while United States of America late for greenwich time ( GMT -04:00 ).