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The Question is: I would like to know how to submit a job to the batch queue to execute at 4 am the following day. If I use the command 'submit/after=04:0.0.0', and it is after 4 am, the job is executed immediately instead of waiting for the next day 4am time. If I use the command 'submit/after=tomorrow:04', and it is after 4 am, the job is held until midnight and immediately executes instead of waiting for 4 am to execute. How should I write the submit statement so that the job is added to the batch queue to execute at a particular time on the following day? The Answer is :
Consider using TOMORROW+4:00
In the specific cases cited, "04:0.0.0" is invalid as it includes
too many dots, while "tomorrow:04" is a valid specification for
four minutes after midnight tomorrow morning.
A DCL specification of an absolute time uses the following fields:
[dd-mmm-yyyy][:hh:mm:ss.cc]
The following rules apply when specifying an absolute time:
o You can truncate the date or the time on the right.
o If you specify both a date and a time, include a colon between
them.
o The date must contain at least one hyphen.
o You can omit any of the fields within the date and time as
long as you include the punctuation marks that separate the
fields.
o A truncated or omitted date field defaults to the corresponding
fields for the current date.
o A truncated or omitted time field defaults to zero.
o If you specify a past time in a command that expects the
current or a future time, the current time is used.
A DCL specification of a delta time uses the following fields:
+[dddd-][hh:mm:ss.cc]
The following rules apply when specifying a delta time in DCL:
o You can truncate a delta time on the right.
o If you specify the number of days, include a hyphen.
o You can omit fields within the time as long as you include
the punctuation that separates the fields.
o If you omit the time field, the default is zero.
In this specific case, you will want to use a combination of an
absolute time (TOMORROW) and a delta time (+4:00), this is called
a Combination Time. The Combination Time permits the following
two formats:
[absolute time][+delta time]
[absolute time][-delta time]
The following rules apply when specifying combination time:
o Precede the delta time value by a plus or minus sign.
o Enclose the entire time specification in quotation marks
if a plus or minus sign precedes the delta time value.
o Omit the absolute time value if you want to offset the
delta time from the current date and time.
o Specify date and time information as completely as possible.
A section on entering Dates and Times as Values is included in the
OpenVMS User's Guide, part of the OpenVMS documentation set. The
documentation -- including the User's Guide -- is available at the
OpenVMS website, on CD-ROM, and in hardcopy.
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