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    12-hour to 24-hour clock conversion

    Help wanted · · · – – – · · ·
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    • Sophia Cruz
      Sophia Cruz last edited by

      I want to convert a 12-hour clock to 24-hour clock up to the ms.

      Example: Today is 12:00:00:001 AM and it’s raining.
      Output: Today is 00:00:00:001 and it’s raining.

      Ekopalypse 1 Reply Last reply Reply Quote 1
      • Ekopalypse
        Ekopalypse @Sophia Cruz last edited by

        @Sophia-Cruz

        check regular expression in replace dialog and use
        find what: (\d{1,2})(:\d{1,2}:\d{1,2}:\d{1,3}) AM
        and replace with 00\2

        1 Reply Last reply Reply Quote 1
        • Sophia Cruz
          Sophia Cruz last edited by

          @Ekopalypse thanks for the answer but what if it’s multiple numbers in AM and PM, and the separator will be from . to :? Regex won’t work for other numbers.

          Example:
          01.25.31.934 PM -> 13:25:31:934
          04.02.28.421 AM -> 04:02:28:421
          09.55.03.732 PM -> 21:55:03:732

          Ekopalypse 1 Reply Last reply Reply Quote 1
          • Ekopalypse
            Ekopalypse @Sophia Cruz last edited by

            @Sophia-Cruz

            would you mind clarifying the exact format of your data as this is essential for
            regular expressions to work correctly. For example, in the previous request you used :
            to separate time fields and now you are using a dot.

            Sophia Cruz 1 Reply Last reply Reply Quote 2
            • Alan Kilborn
              Alan Kilborn last edited by

              Related cross-link: https://notepad-plus-plus.org/community/topic/16854/convert-24-hour-military-time-to-12-hour-time

              Sophia Cruz 1 Reply Last reply Reply Quote 3
              • Sophia Cruz
                Sophia Cruz @Ekopalypse last edited by

                @Ekopalypse I’m sorry I wasn’t clear with my question. I’m really looking for an answer for my 2nd request. I posted the 1st one because I was still trying different regex which would answer my 2nd request and I was hoping I could formulate something with the answer that you provided.

                1 Reply Last reply Reply Quote 0
                • Sophia Cruz
                  Sophia Cruz @Alan Kilborn last edited by

                  @Alan-Kilborn thank you for this link but I already tried the answers provided but I was only able to convert am up to minutes using . as a separator.

                  Alan Kilborn 2 Replies Last reply Reply Quote 0
                  • Alan Kilborn
                    Alan Kilborn @Sophia Cruz last edited by

                    @Sophia-Cruz

                    It wasn’t for you, it was for future searchers of this site that may find this topic when what they are really looking for is the other way around. :)

                    BTW if Eko doesn’t solve your problem here in a reasonable amount of time, I’ll jump in. :)

                    Ekopalypse 1 Reply Last reply Reply Quote 4
                    • Ekopalypse
                      Ekopalypse @Alan Kilborn last edited by

                      @Alan-Kilborn

                      Alan, LOL, please feel free to do so - you are much more in this regex then I’m.

                      1 Reply Last reply Reply Quote 1
                      • Alan Kilborn
                        Alan Kilborn @Sophia Cruz last edited by

                        @Sophia-Cruz

                        This seems to do it:

                        Find: ^(?:(01)|(02)|(03)|(04)|(05)|(06)|(07)|(08)|(09)|(10)|(11)|(12))\.(\d\d)\.(\d\d)\.(\d{3}) (?:(A)|(P))M
                        Repl: (?{12}?{16}00:12)(?{1}?{17}13:01)(?{2}?{17}14:02)(?{3}?{17}15:03)(?{4}?{17}16:04)(?{5}?{17}17:05)(?{6}?{17}18:06)(?{7}?{17}19:07)(?{8}?{17}20:08)(?{9}?{17}21:09)(?{10}?{17}22:10)(?{11}?{17}23:11):$13:$14:$15
                        Search mode: Regular expression

                        I tried to be “fancy” and do the “AM” and “PM” part with “named groups” so that the replacement is more “readable”, but I ran into some trouble with that. If I get it working, and it truly is more readable, I may post that as well…

                        Alan Kilborn Sophia Cruz 2 Replies Last reply Reply Quote 5
                        • Alan Kilborn
                          Alan Kilborn @Alan Kilborn last edited by Alan Kilborn

                          I got it to work with named groups. The problem was, and it makes it less elegant, is that mixing numbered and named capture groups seems to mess things up. So I had to artificially name group # 1 as “one” instead of just using its number. I’ll let the reader decide if this version is more readable than the previous:

                          Find: ^(?:(?<one>01)|(?<two>02)|(?<three>03)|(?<four>04)|(?<five>05)|(?<six>06)|(?<seven>07)|(?<eight>08)|(?<nine>09)|(?<ten>10)|(?<eleven>11)|(?<twelve>12))\.(?<mins>\d\d)\.(?<secs>\d\d)\.(?<ms>\d{3}) (?:(?<am>A)|(?<pm>P))M

                          Repl: (?{twelve}?{am}00:12)(?{one}?{pm}13:01)(?{two}?{pm}14:02)(?{three}?{pm}15:03)(?{four}?{pm}16:04)(?{five}?{pm}17:05)(?{six}?{pm}18:06)(?{seven}?{pm}19:07)(?{eight}?{pm}20:08)(?{nine}?{pm}21:09)(?{ten}?{pm}22:10)(?{eleven}?{pm}23:11):$+{mins}:$+{secs}:$+{ms}

                          Search mode: Regular expression

                          (And I fully expect a “holy cow batman!” from @Meta-Chuh on that one!)

                          (And yes, doing 12 differently from the others in the replace was intentional, as it is a little “out of place” in the conversion)

                          Ekopalypse Meta Chuh 2 Replies Last reply Reply Quote 5
                          • Ekopalypse
                            Ekopalypse @Alan Kilborn last edited by

                            @Alan-Kilborn

                            LOL - if I could I would upvote it 12 times. :-D

                            Alan Kilborn 1 Reply Last reply Reply Quote 2
                            • Alan Kilborn
                              Alan Kilborn @Ekopalypse last edited by Alan Kilborn

                              @Ekopalypse

                              Sometimes things get upvoted too quickly for people to have tried it out to verify/duplicate results. This is somewhat bad as if something doesn’t work (and the thread dies right there) it looks to future readers like a good solution…

                              BTW I think the “replace” is very readable with the named groups, but the “find” suffers…slightly…

                              Ekopalypse 1 Reply Last reply Reply Quote 1
                              • Ekopalypse
                                Ekopalypse @Alan Kilborn last edited by

                                @Alan-Kilborn

                                :-D for me this looks like what we call - bohemian villages.
                                But I can participate on that thread now - I’ve tested it, and it looks good to me :-)
                                Let’s see what the OP thinks about it.

                                1 Reply Last reply Reply Quote 2
                                • Sophia Cruz
                                  Sophia Cruz @Alan Kilborn last edited by

                                  @Alan-Kilborn it works perfectly. Thank you so much!

                                  1 Reply Last reply Reply Quote 3
                                  • Sophia Cruz
                                    Sophia Cruz last edited by

                                    2nd solution is less confusing but both still produces the desired output. :D

                                    1 Reply Last reply Reply Quote 1
                                    • Meta Chuh
                                      Meta Chuh @Alan Kilborn last edited by

                                      @Alan-Kilborn

                                      holy cow batman! 😄👍

                                      Sometimes things get upvoted too quickly for people to have tried it out to verify/duplicate results.

                                      i guess sometimes your writing style is so worth an upvote, that people give you one, even if they have tested it’s content to fail.

                                      greetings,
                                      robin

                                      Alan Kilborn 1 Reply Last reply Reply Quote 1
                                      • Alan Kilborn
                                        Alan Kilborn @Meta Chuh last edited by Alan Kilborn

                                        @Meta-Chuh said:

                                        your writing style…worth an upvote…

                                        My writing style? Nah. I don’t have the flowery prose of a @PeterJones or the diplomatic panache of a @Meta-Chuh . [Basically I don’t wanna put that kind of effort in–to the typing part–obviously with the above regexes staring us in the face I’ll put a little time/effort into THAT aspect. Trying to provide some hopefully accurate help, maybe without the greatest english composition accompanying.]

                                        1 Reply Last reply Reply Quote 2
                                        • guy038
                                          guy038 last edited by guy038

                                          Hi, @sophia-cruz, @alan-kilborn, @eko-palypse, @meta-chuh and All,

                                          Here is a variant of the Alan’s solution, which is less restrictive :

                                          • It just needs that the hour should be located after a non-word, instead of the beginning of line, due to the \b syntax

                                          • It does not care of the synbol between the different parts of the hour ( just changing the \. syntax by . ! )

                                          • It allows the milliseconds part to be absent ( .MMM ), in the hour, with the (?:.(\d{3}))? syntax

                                          • It allows the AM or PM part to come next to the digits, with \x20?

                                          • It does not care of the case , allowing the four syntaxes am, pm, AM and PM with the regex (?i:(AM)|PM)

                                          Note :
                                          In the remplacement regex, when group 17 exists ( AM ), I just rewrite the hour part ( \1 ), except when hour = 12, where the logic is reversed !


                                          So, assuming this sample text :

                                          12.00.47 AM
                                          	12.58.18.387 am
                                          01 07 28 421 AM
                                          03:17:31:934am
                                          05.43.26.582 AM
                                                  07:23:03.732 am
                                          09.31.08AM
                                          11.57.59,003 am
                                          ~~~~~~~~~~~~~~~~~~~~
                                          12.00.45 PM
                                          	12.56.49.203 pm
                                          01 04 51 387 PM
                                          03:15:33:632pm
                                          05.22.00.814 PM
                                                  07:33:55.548 pm
                                          09.45.26PM
                                          11.59.11,247 pm
                                          

                                          With the regex S/R below :

                                          SEARCH :    \b(0(?:(1)|(2)|(3)|(4)|(5)|(6)|(7)|(8)|(9))|(10)|(11)|(12)).(\d\d).(\d\d)(?:.(\d{3}))?\x20?(?i:(AM)|PM)
                                                        │    │   │   │   │   │   │   │   │   │    │    │    │     │      │         │                │
                                                        1    2   3   4    5   6   7   8   9   10   11   12    13    14     15        16               17   <-- Groups
                                          
                                          REPLACE :   (?2(?17\1:13))(?3(?17\1:14))(?4(?17\1:15))(?5(?17\1:16))(?6(?17\1:17))(?7(?17\1:18))(?8(?17\1:19))(?9(?17\1:20))(?10(?17\1:21))(?11(?17\1:22))(?12(?17\1:23))(?13(?{17}00:\1)):$14:$15(?16\:$16)
                                          

                                          We would obtain :

                                          00:00:47
                                          	00:58:18:387
                                          01:07:28:421
                                          03:17:31:934
                                          05:43:26:582
                                                  07:23:03:732
                                          09:31:08
                                          11:57:59:003
                                          ~~~~~~~~~~~~~~~~~~~~
                                          12:00:45
                                          	12:56:49:203
                                          13:04:51:387
                                          15:15:33:632
                                          17:22:00:814
                                                  19:33:55:548
                                          21:45:26
                                          23:59:11:247
                                          

                                          Best Regards,

                                          guy038

                                          1 Reply Last reply Reply Quote 3
                                          • guy038
                                            guy038 last edited by guy038

                                            Hi, All,

                                            When I woke up this morning, I immediately saw a simplification ( in length ! ) of the replacement regex ;-))

                                            So, my last version is :

                                            SEARCH \b(0(?:(1)|(2)|(3)|(4)|(5)|(6)|(7)|(8)|(9))|(10)|(11)|(12)).(\d\d).(\d\d)(?:.(\d{3}))?\x20?(?i:(AM)|PM)

                                            REPLACE (?13(?{17}00:\1):(?17\1:(?{2}13)(?{3}14)(?{4}15)(?{5}16)(?{6}17)(?{7}18)(?{8}19)(?{9}20)(?{10}21)(?{11}22)(?{12}23))):$14:$15(?16\:$16)

                                            BR

                                            guy038

                                            1 Reply Last reply Reply Quote 3
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