Daylight saving: local time and fixed EST and AEST
The converter starts with New York to Sydney, using local clock rules. For the standard-time offsets all year, use the fixed EST and AEST button.
These examples use noon on the dates shown. A converted date can be the previous or following day.
| Starting date and time | Using local city rules | Using fixed EST and AEST |
|---|---|---|
| 2026-01-15 12:00 | 2026-01-16 04:00 (UTC+11:00) | 2026-01-16 03:00 |
| 2026-07-15 12:00 | 2026-07-16 02:00 (UTC+10:00) | 2026-07-16 03:00 |
12:00 PM Wednesday 15 Jul in New York is 2:00 AM Thursday 16 Jul in Sydney (AEST, 14 h ahead).
Why daylight saving conversions need a date explains skipped and repeated clock readings. The rules here come from the browser’s time zone data and can lag a government change.