I'd like to get a DateTime that is 1 week from now at 8 in the morning.
Getting one week is easy:
DateTime.now + 1.week
How do I set the resulting date to a specific time?
3 Answers
There are many ways to achieve this. Here's one:
Time.parse('8am') + 1.week
Here's another:
DateTime.now.beginning_of_day + 1.week + 8.hours
Or how about:
1.week.from_now.beginning_of_day + 8.hours
Or even:
DateTime.now.advance(days: 7).change(hour: 8)
[...] 1 week from now at 8 in the morning
I'd express that via:
1.week.from_now.change(hour: 8)
#=> Thu, 12 Oct 2017 08:00:00 CEST +02:00
change automatically sets "smaller" time units (min, sec, etc.) to 0.
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