The time format assigned to system variable SF_TIME_FORMAT may consist of either one, two or three of the following elements separated by either one or two identical punctuation characters which will be taken as delimiters. Only a single element of each group may be included. Letters may be in upper or lower case:
Hour Elements:
| H | One- or two- digit hour value |
| HH | Two-digit hour value with leading zero if needed |
Minute Elements:
| N | One- or two- digit minute value |
| NN | Two-digit minute value with leading zero if needed |
Seconds Element:
| SS | Two-digit seconds value, with leading zero if needed |
If the time format is invalid or empty, the Windows 'short time format' will be used. If you supply an invalid format, the SF_TIME_FORMAT variable will be set to an empty value instead of the incorrect format you assigned.
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