16.
Which of the following statements can be used to set the time zone in individual scripts?

17.
Among the four PHP DateTimeZone classes given below how many are static? 1. listAbbreviations() 2. getName() 3. getOffset() 4. listIdentifiers()

18.
Among the four PHP DateTimeZone classes given below how many are nonstatic? 1. _construct() 2. getName() 3. getOffset() 4. getTransitions()

19.
Which of the following statements can be used to add two months to the existing date?

20.
Which method enables you to calculate whether daylight saving time is in force at a specific date and time?