David shows how to use the intricate and sometimes underused capabilities of PHP's date and time functions, including the basic date/time formatting functions in PHP 4 and the more advanced functions introduced in PHP 5. For example, you can learn how to find and set time zones, perform date calculations that incorporate different time zones and daylight savings, and calculate the time of sunrises and sunsets. Start watching and learn how to incorporate these powerful functions into your programming arsenal.

Topics include:
* How PHP handles dates and time
* Setting the default time zone
* Displaying current date and time
* Getting a timestamp from text
* Using the DateTime class
* Getting and modifying a timestamp from DateTime
* Comparing DateTime objects
* Working with time zones
* Using DateInterval and DatePeriod
* Finding ISO week dates
* Calculating sunrise and sunset

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