[gradsusr] Date Issue for the DAY 2021

[Miquel Bernis]

I'm dealing with the same problem. Using substr() you can split day (d),
month (m), and year (y), and after that this algorithm looks like works for
me. Returns 0 for a Sunday and up to 6 for a Saturday.

arrayDOW.0=0
arrayDOW.1=3
arrayDOW.2=2
arrayDOW.3=5
arrayDOW.4=0
arrayDOW.5=3
arrayDOW.6=5
arrayDOW.7=1
arrayDOW.8=4
arrayDOW.9=6
arrayDOW.10=2
arrayDOW.11=4

if (m<3)
y=y-1
endif

parm=m-1
dofweek = math_mod((y + math_int(y/4) - math_int(y/100) + math_int(y/400) +
arrayDOW.parm + d),7)

Missatge de CW Weather <weatherstu at chorleyweather.com> del dia dt., 22 de
des. 2020 a les 8:07:

> Hello Users,
>
>
> I know this subject has been covered recently with an issue with the date
> for 2021, with the DAY returning '???'. Is there a suitable work around on
> this for both grads and opengrads users? I know there is a work around with
> some of you implementing Zeller's congruence but alas I have no idea how
> to code or where to code it to.
>
>
> Any help on the matter would be greatly apricated.
> --
>
> Kind regards,
>
> *Stuart Markham*
>
> *Founder of CW Weather*
>
> *Website: chorleyweather.com <https://www.chorleyweather.com/>*
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
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