Comparing times only, without dates?

Question

I need to write a method that will check if Time.now is in between the open hours and the close hours of a shop.

The open and close hours are saved as a Time object but I can't compare it corectly because the shop saved its hours at 2012/2/2 so the open hours will be something like:

2012-02-02 02:30:00 UTC

and Time.now will be:

07:23 +0200

How can I compare just the time part without the date part?

Answer 1

You can compare the Time without a date part, for example, as follows:

time1.utc.strftime( "%H%M%S%N" ) <= time2.utc.strftime( "%H%M%S%N" ) 

Answer 2

There is a nice library https://github.com/bokmann/business_time which will do this and more for you.

BusinessTime::Config.with(beginning_of_workday: "8:30 am", end_of_workday: "5:30 pm") do
  Time.now.during_business_hours?
end

It will do much more for you, like rolling a time to next or previous opening time, counting business hours between two timestamps, etc.

Answer 3

You can compare only time in rails without date part like:--- Here post_review is table and we are getting only these record of post_review which are created_at between 10 am ---5pm in any date

post_review.where("(created_at::time >= :start_time) AND (created_at::time <= :end_time)", 
    start_time: Time.parse("10 am").strftime("%r"),
    end_time:   Time.parse("5 pm").strftime("%r")
 )