9am in Sydney is 7pm in New York City
MEETING PLANNER
hover a column · click to lockSydney is 14 hours ahead of New York City. New York City runs on America/New_York (UTC-4); Sydney runs on Australia/Sydney (UTC+10). The difference is measured right now; it can shift by one hour during daylight-saving-time transitions.
Both New York City and Sydney observe daylight saving time, but their transition dates are not identical. New York City shifts between EST (UTC-5) and EDT (UTC-4); Sydney shifts between AEST (UTC+10) and AEDT (UTC+11). The difference between them stays close to 15 hours across most of the year, with short mismatch windows around each city’s transition when the gap briefly widens or narrows by an hour.
Standard 9-to-5 business hours in New York City and Sydney do not overlap. Teams operating across this pair either stretch their schedules — an early-morning call from the westward city lands as an evening call in the eastward one — or rely fully on asynchronous tools. Scheduled windows at the edges (first thing for one side, last thing for the other) are the usual compromise, with one side absorbing the unsocial-hours cost this week and the other side next week.
When planning recurring meetings across New York City and Sydney, pin them to one city’s local time rather than UTC or the other city’s clock. That way, the meeting time stays stable for the person anchoring the schedule, and the other side absorbs the one-hour drift during DST transitions. The alternative — a meeting pinned to the non-DST city — means the DST city sees the meeting time “move” twice a year, which is how recurring calendar invites end up at 7am on someone’s calendar in October.
- What is the time difference between New York City and Sydney?
- Sydney is currently 14 hours ahead of New York City. New York City is on America/New_York (UTC-4); Sydney is on Australia/Sydney (UTC+10). The offset shifts by one hour during daylight-saving transitions — the difference is 15 hours in winter and 15 hours in summer.
- Do New York City and Sydney observe daylight saving time?
- Both cities observe daylight saving time. New York City uses EST in winter and EDT in summer; Sydney uses AEST in winter and AEDT in summer. Their transition dates can differ by a week or two, which briefly widens or narrows the offset during the changeover period.
- When do business hours overlap between New York City and Sydney?
- Standard 9-to-5 business hours do not overlap. Real-time calls require at least one side to work outside normal hours; most teams default to async or schedule edge-of-day windows.
Frequently Asked Questions
What is the time difference between New York City and Sydney?
Sydney is currently 14 hours ahead of New York City. New York City is on America/New_York (UTC-4); Sydney is on Australia/Sydney (UTC+10). The offset shifts by one hour during daylight-saving transitions — the difference is 15 hours in winter and 15 hours in summer.
Do New York City and Sydney observe daylight saving time?
Both cities observe daylight saving time. New York City uses EST in winter and EDT in summer; Sydney uses AEST in winter and AEDT in summer. Their transition dates can differ by a week or two, which briefly widens or narrows the offset during the changeover period.
When do business hours overlap between New York City and Sydney?
Standard 9-to-5 business hours do not overlap. Real-time calls require at least one side to work outside normal hours; most teams default to async or schedule edge-of-day windows.