![]() ![]() ![]() Instead of having current_user as nil consider setting current_user to a special user object that represents a non logged in user, in that way this object can respond to normal user methods e.g. Use the user’s IP address to infer the timezone, this can be a hit or miss.Use Javascript on the front end to figure out the correct time to display, based on the user’s browser.If your are building a site that needs to show times and you don’t have logged in users, setting the server time zone is not a solution either. In this way you don’t need to convert the timezone inside your controllers, although I like the explicitness of using in_time_zone(). Time_zone = current_y(:time_zone) || 'UTC' You can do this with an around filter in your application controller.Ĭlass ApplicationController < ActionController::Base Starts_at = _time_zone(user.time_zone).beginning_of_dayĮnds_at = _time_zone(user.time_zone).end_of_dayĪppointment.where(starts_at: starts_at).where(ends_at: ends_at)Īnother strategy you can use is to always convert the timezone in each request to the user’s timezone. For example, let’s say we want to find today’s appointments for a user (today as in their timezone): The same is true for queries that should be relative to the user’s timezone. Querying information relative to the user’s timezone Just remember to convert the timezone by using in_time_zone() before anything else. I18n.l(_time_zone(user.timezone).beginning_of_day) This is one of the most crucial things, each time you need to show a date / time to a user, you should convert that time to the user’s timezone. Showing the time / dates in the user’s timezone without the time part) unless you are certain that is what you need, i.e when the date is relative to the user.Įvery user should have a timezone attribute, most likely in the database, but in early stages you can just create a method in the User class that returns a known value. When storing dates in your database always try to use absolute time, e.g. I suggest you don’t worry about setting this at all and leave it to the server timezone. Unless you are only going to be dealing with only that timezone all the time I think this is unnecessary and even misleading. Some tutorials and blogposts suggest that you set the timezone in your app configuration to something known e.g. This is one of those things that can be very difficult to include later, so I don’t think it is a premature optimisation. ![]() Unless you are confident that you will never need to deal with timezones, you should think about them sooner rather than later, building your application in a way that accommodates for them from the beginning. In this blog post I want to share some of the tricks I have learned to deal with timezones effectively in Rails. Uses the closest city, rather than the more common Eastern,Ĭentral, Mountain or Pacific time zones in the United States.We all have to deal with timezones in our Rails app sooner or later (probably sooner). Seconds announced at irregular intervals to compensate for theĮarth's slowing rotation. Seconds defined by International Atomic Time (TAI), with leap Time (UTC), or Greenwich Mean Time (GMT). Positive or negative offset computed from Coordinated Universal Use it as a meeting planner or a scheduler to find the best time The calculator will automaticallyĪdjust for daylight saving time (DST) in the summer. You can enter airports,Ĭities, states, countries, or zip codes to find the time differenceīetween any two locations. This is the best time to reach them fromĬonverter for places all over the world. This will be between 7AM - 11PM their time, since Rail, Missouri is in the same time zone as Floyd W Jones Lebanon.īut you want to reach someone in Rail, MO at work, you may want to try between 9:00 AM and 5:00 PM your time. If you are at LJY and you want to call a friend in Rail, MO, you can try calling them between 7:00 AM and 11:00 PM your time. Remember to checkĭaylight savings for any time changes if you are scheduling a call. Since Floyd W Jones Lebanon and Rail, Missouri are in the same time zone, you can call someone during your normal hours and it will be the Schedule a phone call from LJY to Rail, MO That will end up being between 9:00 AM and 5:00 PM in Rail, MO. Meeting at the best time for both parties, you should try between 9:00 AM and 5:00 PM your time in LJY. Meeting planner for Floyd W Jones Lebanon and Rail, Missouri ![]()
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