The time zone for the Orbital gateway must be entered as a three-digit code. In computer-language fashion, the code specifies the difference between Universal Time (UTC, formerly GMT) and your time zone.

The first digit designates whether your time zone is ahead or behind UTC, and whether you participate in daylight savings time.
The second and third digits designate how many hours or quarter hours different your time zone is from UTC.

Picking a First Digit

The first digit is a number between 1 and 8, inclusive. It specifies whether your time zone is ahead of UTC (positive offset) or behind (negative offset), whether the offset is in whole hours or 15 minute increments, and whether your area participates in daylight savings time. Here are the values and their meanings:

Value	Meaning
0	Positive offset, in hours, ahead of UTC
2	Positive offset, in 15 minute increments, ahead of UTC
4	Positive offset, in 15 minute increments, ahead of UTC, in cities participating in daylight savings time
6	Positive offset, in hours, ahead of UTC, in cities participating in daylight savings time
1	Negative offset, in hours, ahead of UTC
3	Negative offset, in 15 minute increments, ahead of UTC
5	Negative offset, in 15 minute increments, ahead of UTC, in cities participating in daylight savings time
7	Negative offset, in hours, ahead of UTC, in cities participating in daylight savings time

Picking the Second and Third Digits

The last two digits simply identify how much time difference there is between your time zone and UTC.

If the offset to your time zone is in whole hours (that is, your first digit is 0, 1, 6, or 7), your last two digits must be the number of hours difference. For example, if your time zone is 10 hours different from UTC, you would use "10." If your time zone is 5 hours different from UTC, you would use "05." You must use a leading zero if the offset is less than 10 hours.
If the offset to your time zone is in 15 minute increments (that is, your first digit is 2, 3, 4, or 5), your last two digits must be the number of increments difference. For example, if your time zone is 4 1/2 hours different from UTC, you would use "18." You must use a leading zero if the offset is less than 10 increments (2 1/2 hours).