London and Hong Kong Time Zone Comparison
London and Hong Kong are two major cities that sit in noticeably different time zones. London and Hong Kong sit on different continents, in noticeably different time zones, and at least one of them observes daylight saving time.
Because London and/or Hong Kong observe daylight saving time for part of the year, the gap between them isn't fixed — it ranges between 7 and 8 hours depending on the season.
With a gap this large, business hours barely overlap between London and Hong Kong — an early morning or a late evening on one side is usually needed to connect with the other.