Introduction
7m 22s
Welcome
1m 6s
What you should know before watching this course
3m 6s
Using the exercise files
3m 10s
1. Handling Dates and Times in PHP
14m 5s
What's involved in storing dates and time
1m 27s
How PHP handles dates and time
4m 1s
Setting the default time zone
8m 37s
2. Basic Date and Time Functions
39m 27s
Displaying the current date and time
6m 48s
Checking that a date is valid
6m 59s
Timing how long a script runs
6m 8s
Using time() to end a session after a period of inactivity
7m 31s
Getting a Unix time stamp for a specific date or time
5m 13s
Getting a time stamp from text
6m 48s
3. Using the DateTime class
1h 5m
Introducing the DateTime class
3m 19s
Creating a DateTime object
4m 27s
Displaying the value of a DateTime object
4m 49s
Extending DateTime to create a default format
5m 50s
Getting the time stamp from a DateTime object
5m 15s
Using a time stamp to set the date and time
5m 8s
Modifying the time stamp with a date string
6m 24s
Troubleshooting incorrect dates
7m 6s
Setting the date and time independently
4m 58s
Creating a DateTime object from a custom format
9m 38s
Comparing DateTime objects
4m 1s
Preserving the original date when modifying the time stamp
4m 50s
4. Working with Time Zones
44m 29s
Finding the correct time zone from an abbreviation
3m 58s
Finding time zones by country
6m 56s
Getting the time zone of a DateTime object
2m 24s
Creating a DateTime object for a different time zone
7m 15s
Changing a DateTime object's time zone
7m 37s
Finding the time difference between locations
7m 10s
Finding out when the clocks change
9m 9s
5. Using the DateInterval and DatePeriod classes
35m 50s
Introducing the DateInterval and DatePeriod classes
1m 43s
Creating a DateInterval
4m 12s
Adding and subtracting dates
4m 44s
Finding the difference between two dates or times
7m 55s
Formatting a DateInterval
5m 32s
Generating a sequence of dates at regular intervals
6m 35s
Finding the third Thursday in each month
5m 9s
6. Working with ISO Week Dates
12m 55s
Understanding ISO week dates
2m 57s
Creating a DateTime object for an ISO week date
5m 34s
Finding the ISO week date
4m 24s
7. Calculating Sunrise and Sunset
15m 21s
Finding when the sun rises and sets
7m 23s
Getting more information about sunrise and sunset
2m 46s
Calculating the number of daylight hours
5m 12s
Conclusion
2m 9s
Goodbye
2m 9s

Need to calculate the date of the third Thursday of each month or the Friday after next? PHP—and David Powers—have you covered. 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