GNU bug report logs - #53033
date has multiple "first saturday"s?

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Package: coreutils;

Reported by: Darryl Okahata <darryl_okahata <at> keysight.com>

Date: Wed, 5 Jan 2022 18:44:01 UTC

Severity: normal

Full log

Message #20 received at 53033 <at> debbugs.gnu.org (full text, mbox):

From: Darryl Okahata <darryl_okahata <at> keysight.com>
To: Darryl Okahata <darryl_okahata <at> keysight.com>, "schwab <at> linux-m68k.org"
 <schwab <at> linux-m68k.org>, "53033 <at> debbugs.gnu.org" <53033 <at> debbugs.gnu.org>
Subject: RE: bug#53033: date has multiple "first saturday"s?
Date: Thu, 6 Jan 2022 21:50:26 +0000

        $ src/date --debug -d "second saturday"
        date: parsed relative part: +1 seconds
        date: parsed day part: Sat (day ordinal=0 number=6)
        date: input timezone: system default
        date: warning: using midnight as starting time: 00:00:00
        date: new start date: 'Sat' is '(Y-M-D) 2022-01-08 00:00:00'
        date: starting date/time: '(Y-M-D) 2022-01-08 00:00:00'
        date: '(Y-M-D) 2022-01-08 00:00:00' = 1641628800 epoch-seconds
        date: after time adjustment (+0 hours, +0 minutes, +1 seconds, +0 ns),
        date:     new time = 1641628801 epoch-seconds
        date: timezone: system default
        date: final: 1641628801.000000000 (epoch-seconds)
        date: final: (Y-M-D) 2022-01-08 08:00:01 (UTC)
        date: final: (Y-M-D) 2022-01-08 00:00:01 (UTC-08)
        src/date: output format: ‘%a %b %e %H:%M:%S %Z %Y’
        Sat Jan  8 00:00:01 PST 2022

I just noticed that "second Saturday" is being parsed as "Saturday + 1 second".

  -- Darryl

-----Original Message-----
From: Bug-coreutils <bug-coreutils-bounces+darryl_okahata=keysight.com <at> gnu.org> On Behalf Of Darryl Okahata via GNU coreutils Bug Reports
Sent: Wednesday, January 5, 2022 3:15 PM
To: schwab <at> linux-m68k.org; 53033 <at> debbugs.gnu.org
Subject: bug#53033: date has multiple "first saturday"s?

From coreutils 9.0 (note the difference between the "second" and "third"
saturdays):


$ src/date --debug -d "first saturday"
date: parsed day part: next/first Sat (day ordinal=1 number=6)
date: input timezone: system default
date: warning: using midnight as starting time: 00:00:00
date: new start date: 'next/first Sat' is '(Y-M-D) 2022-01-08 00:00:00'
date: starting date/time: '(Y-M-D) 2022-01-08 00:00:00'
date: '(Y-M-D) 2022-01-08 00:00:00' = 1641628800 epoch-seconds
date: timezone: system default
date: final: 1641628800.000000000 (epoch-seconds)
date: final: (Y-M-D) 2022-01-08 08:00:00 (UTC)
date: final: (Y-M-D) 2022-01-08 00:00:00 (UTC-08)
src/date: output format: ‘%a %b %e %H:%M:%S %Z %Y’
Sat Jan  8 00:00:00 PST 2022

$ src/date --debug -d "second saturday"
date: parsed relative part: +1 seconds
date: parsed day part: Sat (day ordinal=0 number=6)
date: input timezone: system default
date: warning: using midnight as starting time: 00:00:00
date: new start date: 'Sat' is '(Y-M-D) 2022-01-08 00:00:00'
date: starting date/time: '(Y-M-D) 2022-01-08 00:00:00'
date: '(Y-M-D) 2022-01-08 00:00:00' = 1641628800 epoch-seconds
date: after time adjustment (+0 hours, +0 minutes, +1 seconds, +0 ns),
date:     new time = 1641628801 epoch-seconds
date: timezone: system default
date: final: 1641628801.000000000 (epoch-seconds)
date: final: (Y-M-D) 2022-01-08 08:00:01 (UTC)
date: final: (Y-M-D) 2022-01-08 00:00:01 (UTC-08)
src/date: output format: ‘%a %b %e %H:%M:%S %Z %Y’
Sat Jan  8 00:00:01 PST 2022

$ src/date --debug -d "third saturday"
date: parsed day part: third Sat (day ordinal=3 number=6)
date: input timezone: system default
date: warning: using midnight as starting time: 00:00:00
date: new start date: 'third Sat' is '(Y-M-D) 2022-01-22 00:00:00'
date: starting date/time: '(Y-M-D) 2022-01-22 00:00:00'
date: '(Y-M-D) 2022-01-22 00:00:00' = 1642838400 epoch-seconds
date: timezone: system default
date: final: 1642838400.000000000 (epoch-seconds)
date: final: (Y-M-D) 2022-01-22 08:00:00 (UTC)
date: final: (Y-M-D) 2022-01-22 00:00:00 (UTC-08)
src/date: output format: ‘%a %b %e %H:%M:%S %Z %Y’
Sat Jan 22 00:00:00 PST 2022

  -- Darryl

-----Original Message-----
From: Andreas Schwab <schwab <at> linux-m68k.org>
Sent: Wednesday, January 5, 2022 2:10 PM
To: Darryl Okahata via GNU coreutils Bug Reports <bug-coreutils <at> gnu.org>
Cc: 53033 <at> debbugs.gnu.org; Darryl Okahata <darryl_okahata <at> keysight.com>
Subject: Re: bug#53033: date has multiple "first saturday"s?

On Jan 05 2022, Darryl Okahata via GNU coreutils Bug Reports wrote:

>         $ date -d "first saturday"
>         Sat Jan  8 00:00:00 PST 2022
>
> Unless there is some weird definition of "first Saturday", shouldn't
> this be the 1st (New Year's Day)?

Try date --debug.

--
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1 "And now for something completely different."
This bug report was last modified 3 years and 162 days ago.

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