Skip navigation

On September 14th, 2017, we published revised versions of our Privacy Policy, Terms of Service and Website Use Policy and published a Cookie Policy. Your continued use of means you agree to these revised documents, so please take a few minutes to read and understand them.

Welcome: PHP Date and Time Essential Training
Welcome: PHP Date and Time Essential Training

Learn to use the intricate and sometimes underused capabilities of PHP's date and time functions to create, format, calculate, and compare dates and times.

Resume Transcript Auto-Scroll
Skill Level Intermediate
4h 31m
Show More Show Less

Q: How does calculating sunrise and sunset (as shown in chapter 7) work for locations north of the Arctic Circle?

A: In polar regions, date_sun_info() reports the value for sunrise and sunset as 1 on days when the sun never sets. The values are empty for days when the sun never rises.

Skills covered in this course
Developer Programming Languages Web Development PHP

Continue Assessment

You started this assessment previously and didn't complete it. You can pick up where you left off, or start over.

Start Your Free Trial Now

Start your free trial now, and begin learning software, business and creative skills—anytime, anywhere—with video instruction from recognized industry experts.

Start Your Free Trial Now