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Gateway - The time zone with offset is computed inversely

Due to POSIX-style signs Copied

For example, when GMT+1 is defined in the Gateway’s timezone setting, the Gateway treats this as GMT-1. This is the default behavior of POSIX-style signs in the time zone names. When this style is used:

• GMT+1 means one hour behind GMT (i.e. west of Greenwich)
• GMT-1 means one hour ahead of GMT (i.e. east of Greenwich)

IANA time zone names Copied

It is therefore recommended to use the IANA time zone names such as America/New_York or Europe/London as values for the timezone setting:

Reference Copied

• stackoverflow - Why are UTC offsets being reversed?
• Wikipedia - The tz database
• Gateway - Timezone setting