#1011164 rtcwake: time without date defaulting to "today" is useless

Package:
util-linux
Source:
util-linux
Description:
miscellaneous system utilities
Submitter:
Simon Richter
Date:
2026-01-10 11:40:07 UTC
Severity:
wishlist
Tags:
#1011164#5
Date:
2022-05-17 18:49:02 UTC
From:
To:
Hi,

the rtcwake command accepts a time without a date as an argument to --date,
interprets it as meaning "today", then complains that the RTC doesn't go
backwards. The string "tomorrow" can only stand alone and means midnight.

This makes it difficult to specify "tomorrow 9:00" without date calculation
code, like rtcwake -t `date +%s -d "tomorrow 9:00"`.

Since it is clear that the desired time cannot be in the past, it would be
nice to interpret a time without a date as either today or tomorrow,
similar to how at(1) handles it.

   Simon
#1011164#10
Date:
2026-01-10 10:08:19 UTC
From:
To:
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