It's important to note how the system reflects the changes in times surrounding daylight saving hours. The times shown and entered when creating your entries reflect the local time for the timezone and locality of the account on the day you created it.

For example, an event that starts at 10:00 am in the "London" timezone is 10:00 am GMT (Greenwich Mean Time) in Winter and 10:00 BST (British Summer Time) in Summer.

For recurring events, "10:00 am" will show GMT until the clocks change, then display as BST, and then back to GMT as per the time of year, i.e. the time is always 10:00 am, with daylight saving automatically applied.

Some accounts are set to UTC (Coordinated Universal Time, which has no daylight saving). In this case, a recurring event set to "10:00 am" will be 10:00 UTC all year round. However, if UTC shows on a 'London' calendar, that event will be 10:00 am GMT in winter but 11:00 am BST in Summer.


To note: The term "Time zone" is not the same as "Local Time" (which is why it's best to set your zone as a city and not a generalised timezone). "Time zone" is often used instead of "Local time".

For example, during DST (Daylight Saving Time), it is common to say two areas, such as California and Arizona, are in the same "Time zone" because they reflect the same time on the clock. However, California and Arizona would have the same "Local time.” This is because California's local time is UTC-8 (Coordinated Universal Time) in Standard time but is UTC-7 during DST (Daylight Saving Time). However, Arizona's local time is always UTC-7 because there's no DST (Daylight Saving Time) in Arizona, and they remain on standard time all year.


💡 Important note regarding ticket availability restrictions:

DST (Daylight Saving Time) removes or adds an hour around midnight, which means, for example, any ticket set to become available 24 hours before the event starts will be wrong if it's on the DST change-over. A workaround here is to unpublish any dates that occur after the change happens and re-publish them once it has.

You can read more about time zones and their behaviour here.

✨ If you have any questions, please get in touch with the support team via live chat or email at support@bookwhen.com


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