strptime, date and conversion of week number into POSIX

I think the relevant info from ?strptime is:

"For strptime the input string need not specify the date completely: it is
assumed that unspecified seconds, minutes or hours are zero, and an
unspecified year, month or day is the current one. (However, if a month is
specified, the day of that month has to be specified by %d or %e since the
current day of the month need not be valid for the specified month.) Some
components may be returned as NA (but an unknown tzone component is
represented by an empty string)."

I think this means that your strings cannot be converted by strptime() as
essential info is missing. Input from those with more date-time expertise
on this point would be welcome, however.

Cheers,
Bert
Bert Gunter

"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )

On Mon, Feb 22, 2021 at 6:27 AM Patrick Giraudoux <

strptime, date and conversion of week number into POSIX

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