We're having a Skyclock Summer Solstice Sale! Normally $1.99, we've reduced the price to .99 through July 7. Happy Solstice!

Skyclock is the ultimate Sun calculator for sunrise, sunset, and twilight times.

Twilight awareness is a gift of time. Skyclock shows you ‘usable twilight’ and thereby extending your day. Twilight is that time between day and night when there is available light before sunrise, or after sunset. All of these times change every day, and depend on where you are.

Using an analog clock face (12 or 24 hour mode), and Skyclock’s patented ‘slice of pie’ display method, you can quickly see and understand all of these times, and optimize your outdoor activities to take advantage of natural lighting conditions.

With Skyclock you can get that evening round of golf in before dark. You can finish the landscaping job. You can plan to be at the beach in time to watch a beautiful sunset, and then enjoy the colors in the sky that are best during twilight. You can know if you will ‘be home before dark’. You can plan your fishing time for when they’re biting, and your hiking time to get back to camp in time for the twilight smores. And you can do much, much more.

It’s convenience, planning, and safety. It’s making the most of your outdoor time, whether it’s for recreation, or occupation. Enjoy your day. Enjoy your night. Most of all, enjoy the twilight times in between like you never have before. Twilight awareness with Skyclock will extend your day. And you’ll never view twilight the same again.

The basic version has a beautiful picture of London's Westminster Palace during twilight. You can then get the in-app upgrade to replace the picture with two lines of text that show; Time remaining until sunset/sunrise, and time remaining until the beginning of civil twilight (dawn) or the end of civil twilight (dusk).

For more information on twilight and Skyclock, visit www.skyclock.com, and www.facebook.com/skyclock.