Re^5: DateTime::Format::Strptime Parsing Seems to have a Problem?

Curious... but an interesting point.

Again, the docs state:

If no parameters are given, then the set members each occur at the beginning of the specified recurrence.

I would read that to mean that as I'm specifying a 'daily' recurrence, the 'beginning' of the recurrence is 00 hours of the specified day when a set is created (the item's beginning is the next smaller measure - a daily recurrence starts from a zero hour). The curious thing is that the docs say:

For example, by default, the monthly() method returns a set containing the first day of each month.

...which should, if the definition was consistent, refer to the first week of the month... but it refers to the first day.

I admit I'm sometime as thick as a brick... but if the docs aren't clear (and/or can be misinterpreted), they aren't clear... tha's all.

Comment on Re^5: DateTime::Format::Strptime Parsing Seems to have a Problem?

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Re^6: DateTime::Format::Strptime Parsing Seems to have a Problem? by parv (Parson) on Apr 03, 2019 at 13:59 UTC
For example, by default, the monthly() method returns a set containing the first day of each month. ...which should, if the definition was consistent, refer to the first week of the month... but it refers to the first day. A monthly event happens once a month. (Why should such an event last whole week?) It could be that I do not have the same cultural background as you do related to calendar and time.	[reply]
Re^7: DateTime::Format::Strptime Parsing Seems to have a Problem? by ozboomer (Friar) on Apr 04, 2019 at 03:11 UTC
(These replies are getting too deep(!)) A monthly event happens once a month. (Why should such an event last whole week?) It could be that I do not have the same cultural background as you do related to calendar and time. I'm not saying anything about how long an event lasts (or anything cultural/how time is divided); it's about how the recurrence interval 'zero point' is defined... and its inconsistency. Have another look at the examples I quote: (we're guessing) one uses the relevant 'zero point' for the next smallest 'time division' (use the '0th hour' as the starting point for a 'day' recurrence), while the other example does NOT use that convention (you'd expect the '0th week' (or '0th fortnight') as the starting point for a 'monthly' recurrence)... but that's not how it works -- the rules are inconsistent. Hence, I'd suggest it would be helpful to include a table in the docs that defines the 'zero point' of the 'beginning' of each 'recurrence type'... so that users of a 'recurrence type' would be more likely to understand the actual workings of the recurrence.. instead of needing to spend time trying to deduce how the recurrence is working.	[reply]
Re^8: DateTime::Format::Strptime Parsing Seems to have a Problem? by soonix (Chancellor) on Apr 05, 2019 at 07:06 UTC
you'd expect the '0th week' (or '0th fortnight') as the starting point for a 'monthly' recurrence Not all months start at the start of a week (or of a fortnight, for that matter), and ~~most~~ 11¼ out of 12 months don't have an integral number of these. Every month (and week) starts at the beginning of a day, and contains an integral number of days.	[reply]