38 XLi IEEE 1588 Clock
997-01510-03, Rev. C, 12/12/2006
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F1 – Time Zone Offset
Use function F1 to display and set the time zone offset between your Standard Time zone and Universal
Time Coordinated (UTC). Refer to “F: World Map of Time Zones:” on page193. F1 is the basis for
Standard Time and Local Time used by F69. For an expanded explanation of Local, St andard, UTC, T AI,
and GPS time, see “F69 – Time Mode” on page65 .
For example, to set the time zone for Pacific Standard Time (UTC –8 hours), set the value in F1 to –
08:00. Exclude the 1-hour Daylight Saving Time (DST) offset from this value. DST is handled separately
by “F66 – Daylight Saving Time (DST) Mode” on page63.
Because the front panel display and Multicode Output card can be configured to display/distribute Local
or Standard time, we recommended configuring F1 as described in the “3: Installation and Set-up” on
page 15.
The factory setting for F1 is UTC –8:00 hours (Pacific Standard Time).
Related topics:
•“F2 – 12/24 Hour Format” on page 39
•“F11 - Time Output Format” on page50
•“F27 – FTM III Configuration” on page53
Command Line
To display the time zone offset, enter “F1<CR>” on the command line. The XLi responds with the
following character string:
F1<S><SIGN><HH>:<MM><CR><LF>
where:
For example, to set the time zone offset, enter:
F1 –8:00<CR>
F= ASCII character F
01 = function number
<S> = ASCII space character (one or more)
<SIGN> = either no character or + for positive offsets or – for negative offsets
<HH> = one – or two-digit hours offset from 00 to12 hours
:= ASCII character for a colon
<MM> = two-digit minutes offset
<CR> = carriage return character
<LF> = line feed character