How to Display Time in the User's Local Time Zone on iPhone from a MySQL Server?

Converting Time to iPhone Time Zone

When retrieving a time stored in Eastern Standard Time (EST) on a MySQL server from an iPhone app, the task arises to display it in the user's correct time zone. This requires converting the EST time to the iPhone's local time.

To accomplish this conversion, consider the following:

• Avoid ambiguous abbreviations: Use full time zone names instead of abbreviations like EST, which can refer to multiple locations.
• Use NSTimeZone initWithName: This method provides greater precision by specifying the exact time zone name.
• Consult timezone databases: Utilize resources like the Chronos Time Zone Repository to understand time zone variations and relationships.

Example:

Assuming EST represents Eastern Standard Time in the United States, it is generally 5 hours behind Coordinated Universal Time (UTC). Therefore, to convert an EST time to UTC, subtract 5 hours. To display the time in the user's local timezone, retrieve their device settings and apply the appropriate offset.

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