[Bug 2015381] [NEW] 1st Week number changes date later in year.

[Brook Harty]

Public bug reported:

I run a calendar every year, and over the last few years, the WEEK
numbers change a few months into the year.  Throws off weekly numbers
for every week. Now the year calendar is now 1 week behind.

I suspect Its the week ending in Sunday format, Sun-Sat calendars show
proper week numbers, Mon-Sunday week numbers now mismatch.  Week numbers
should be the same.


Calendar command = ncal -wMb 2023


Calendar printed in Jan 2023 this year.  Notice the Week 1 starts on 2nd.
								   2023
         January                   February                     March
 w| Mo Tu We Th Fr Sa Su    w| Mo Tu We Th Fr Sa Su    w| Mo Tu We Th Fr Sa Su
52|                    1    5|        1  2  3  4  5    9|        1  2  3  4  5
 1|  2  3  4  5  6  7  8    6|  6  7  8  9 10 11 12   10|  6  7  8  9 10 11 12
 2|  9 10 11 12 13 14 15    7| 13 14 15 16 17 18 19   11| 13 14 15 16 17 18 19
 3| 16 17 18 19 20 21 22    8| 20 21 22 23 24 25 26   12| 20 21 22 23 24 25 26
 4| 23 24 25 26 27 28 29    9| 27 28                  13| 27 28 29 30 31
 5| 30 31


Ran Calendar again in April this year, Now the week 1 starts on Sunday 1st.

        January                   February                     March
 w| Mo Tu We Th Fr Sa Su    w| Mo Tu We Th Fr Sa Su    w| Mo Tu We Th Fr Sa Su
 1|                    1    6|        1  2  3  4  5   10|        1  2  3  4  5
 2|  2  3  4  5  6  7  8    7|  6  7  8  9 10 11 12   11|  6  7  8  9 10 11 12
 3|  9 10 11 12 13 14 15    8| 13 14 15 16 17 18 19   12| 13 14 15 16 17 18 19
 4| 16 17 18 19 20 21 22    9| 20 21 22 23 24 25 26   13| 20 21 22 23 24 25 26
 5| 23 24 25 26 27 28 29   10| 27 28                  14| 27 28 29 30 31
 6| 30 31

** Affects: bsdmainutils (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: cal

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https://bugs.launchpad.net/bugs/2015381

Title:
  1st Week number changes date later in year.

Status in bsdmainutils package in Ubuntu:
  New

Bug description:
  I run a calendar every year, and over the last few years, the WEEK
  numbers change a few months into the year.  Throws off weekly numbers
  for every week. Now the year calendar is now 1 week behind.

  I suspect Its the week ending in Sunday format, Sun-Sat calendars show
  proper week numbers, Mon-Sunday week numbers now mismatch.  Week
  numbers should be the same.

  
  Calendar command = ncal -wMb 2023

  
  Calendar printed in Jan 2023 this year.  Notice the Week 1 starts on 2nd.
  								   2023
           January                   February                     March
   w| Mo Tu We Th Fr Sa Su    w| Mo Tu We Th Fr Sa Su    w| Mo Tu We Th Fr Sa Su
  52|                    1    5|        1  2  3  4  5    9|        1  2  3  4  5
   1|  2  3  4  5  6  7  8    6|  6  7  8  9 10 11 12   10|  6  7  8  9 10 11 12
   2|  9 10 11 12 13 14 15    7| 13 14 15 16 17 18 19   11| 13 14 15 16 17 18 19
   3| 16 17 18 19 20 21 22    8| 20 21 22 23 24 25 26   12| 20 21 22 23 24 25 26
   4| 23 24 25 26 27 28 29    9| 27 28                  13| 27 28 29 30 31
   5| 30 31

  
  Ran Calendar again in April this year, Now the week 1 starts on Sunday 1st.

          January                   February                     March
   w| Mo Tu We Th Fr Sa Su    w| Mo Tu We Th Fr Sa Su    w| Mo Tu We Th Fr Sa Su
   1|                    1    6|        1  2  3  4  5   10|        1  2  3  4  5
   2|  2  3  4  5  6  7  8    7|  6  7  8  9 10 11 12   11|  6  7  8  9 10 11 12
   3|  9 10 11 12 13 14 15    8| 13 14 15 16 17 18 19   12| 13 14 15 16 17 18 19
   4| 16 17 18 19 20 21 22    9| 20 21 22 23 24 25 26   13| 20 21 22 23 24 25 26
   5| 23 24 25 26 27 28 29   10| 27 28                  14| 27 28 29 30 31
   6| 30 31

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