Difference time between Singapore and United States of America in hours, minutes, and seconds is [ +12 hours ] with gregorian date today is Wednesday 1st of April 2026 in Singaporean local time, Where the time now in Singapore is 19:21 PM and the time now in United States of America is 07:21 AM 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 ).