London to Sydney Time Converter

Realistic Overlap for a Standard 9-to-5

Assuming a standard 9am–5pm workday on both ends, London and Sydney share no true overlap. There's no window where both teams are in a standard workday at the same time, so this pairing needs to run async by default, with any live call landing outside someone's normal hours.

• January: the one-hour slot that splits the inconvenience most evenly is 7:00am in London = 6:00pm in Sydney.
• July: the one-hour slot that splits the inconvenience most evenly is 8:00am in London = 5:00pm in Sydney.

2026 Clock Changes for London and Sydney

These are the dates in 2026 when the gap between the two cities changes. Around each one, check that recurring invites still land where you expect — calendar apps anchor a meeting to its organizer's time zone, so it's the other side's local time that moves.

• Jan 1 — Sydney is 11 hours ahead of London.
• Mar 29 — London springs forward to UTC+1, so Sydney is now 10 hours ahead of London.
• Apr 5 — Sydney falls back to UTC+10, so Sydney is now 9 hours ahead of London.
• Oct 4 — Sydney springs forward to UTC+11, so Sydney is now 10 hours ahead of London.
• Oct 25 — London falls back to UTC+0, so Sydney is now 11 hours ahead of London.

Hour-by-Hour: London to Sydney

London's day from 7am to 10pm, with the matching time in Sydney in January and July. Green is a standard 9-to-5, amber is the early-morning or evening fringe, and grey is when people are usually asleep.