Please pay attention to the following three points when processing time and time zone in PHP!

                                                       

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When asked if it is difficult to deal with dates and time zones, more than 50% of developers answered "yes". My guess is that those who said "no" to this poll either already understand this or they are not working with a platform/app that has to cater to a global audience.

Anyway, I wanted to create a blog post detailing how I handle dates and time zones. I think just follow these simple rules and you won't have such a headache.

Rule #1 - Store UTC formatted DATETIMES and backend code in the database.

It is important that all date-related data be consistent. When storing dates in the database, they should always be in UTC format. If you're not familiar with what UTC is, it's the primary time standard that all major time zones are based on. The primary time zone is simply an offset from UTC. Also, when using backend code to handle dates, make sure the datetime is in UTC format.

Rule #2 - Use front-end code to convert DATETIMES to the user's local time zone.

Although your backend will return UTC times, the frontend can easily convert these times to the user's local time zone. Doing so instills a separation of duties between the backend (handled to UTC) and the frontend (handled to the user's local time). Maintain front-end date-time formatting consistency by using standards such as ISO 8601. When you send a request to the backend, send the datetime in ISO 8601 format so that the backend can easily convert it to the corresponding UTC datetime.

Rule #3 - Use a datetime library.

Libraries for better handling of datetimes exist in all major web development languages/frameworks. These make it much easier to convert or format based on standards such as ISO 8601. An example library to check out in JavaScript is Moment.js. An example library to check out in Please pay attention to the following three points when processing time and time zone in PHP! is Carbon.

By following these rules, you should instill an efficient process in how you handle datetimes.

Information:

• UTC time standard - https://en.wikipedia.org/wiki/Coordinated_Universal_Time
• ISO 8601 time format standard - https:// en.wikipedia.org/wiki/ISO_8601
• Moment JS date and time library - https://momentjs.com/
• Carbon Please pay attention to the following three points when processing time and time zone in PHP! date and time library - https://carbon.nesbot.com /docs/

Original address: https://dev.to/corykeane/3-simple-rules-for-effectively-handling-dates-and-timezones-1pe0

Translation address: https://learnku.com/php/t/50855

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