Utilities: Administration: Server: Server Settings: Basic Settings: Time Zones

On the Time Zone page, you can choose the time zone that you are sending mail from. This ensures that the time applied to your mailings is always correct, even if the clock shifts to accommodate Daylight Savings Time.

To choose a time zone

1. Click the Time Zone box.
2. Do one of the following:
• Choose the preset that applies to your time zone. For example, if you are located in California, choose (GMT-08:00) Pacific (US, Canada, Mexico)
• If one of the presets does not suit your need, choose Custom Definition.

To set up a Custom Definition

1. In the Time Zone box, choose Custom Definition.
2. In the Offset from GMT box, type an offset.

GMT stands for "Greenwich Mean Time." Greenwich, England is the location of the Prime Meridian (longitude: 0); the world's 24 time zones are all determined by their relationship to the Prime Meridian. The Eastern Standard Time zone has a GMT offset of five (i.e., it is five time zones west of GMT), so its offset would be -0500. The Pacific Standard Time zone is three time zones further west, so its GMT offset would be -0800.

3. If your time zone observes Daylight Saving (Summer) Time, click Yes next to Daylight Saving (Summer) Time Observed? Otherwise, click No.
4. In the DST Start Rule and DST End Rule sections, choose the correct rules for your time zone.

DST (Daylight Savings Time) rules vary depending on which time zone you are in. Arizona, for example, does not observe Daylight Savings Time so it has no rules. For most other U.S. locations, the latest rules were established by the Energy Policy Act of 2005. The Act states that DST now begins at 2 a.m. on the second Sunday of March and ends at 2 a.m. on the first Sunday in November.

5. When you are finished, click Save.