Day and Date Functions

Liberty Basic Day and Date Routines

LB day-of-week conversion.
This routine uses LB's built-in date$() function.
In the LB universe, day 0 was Jan 1, 1901.
Dates before 1/1/1901 return negative numbers.

It will accept 1- or 2-digit numbers for the month and day
and 1, 2, 3 or 4-digit numbers for the year. Years from
0 to 99 are assumed as 2000 to 2099. It will also accept
fully typed month names or 3-letter abbreviations.
Some examples:
Jul 4, 2006 -- July 04, 2006 -- 07/04/2006
7/4/6 -- 7/4/06 -- 7/4/2006 -- 07/04/06

Be aware that negative years are incorrectly handled as
positive, so LB's date$() function can not be relied upon
for any date earlier than Jan 1, 100.

' Return day-of-week for d$
function dayofweek$(dt$)
  day = date$(dt$)
  select case (day mod 7)
    case    0: d$ = "Tuesday"
    case -6,1: d$ = "Wednesday"
    case -5,2: d$ = "Thursday"
    case -4,3: d$ = "Friday"
    case -3,4: d$ = "Saturday"
    case -2,5: d$ = "Sunday"
    case -1,6: d$ = "Monday"
  end select
  dayofweek$ = d$
end function

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Take care

• -- - harmonv