2007-2012
This logo was used for the iPhone and iPod Touch from iPhone OS 1 in June 2007 to iOS 5 in August 2012.
2012-2013 (iPhone and iPod Touch on right and iPad on left)
The logo on the right was only used for the iPhone and iPod Touch during iOS 6 in September 2012 The minute and hour hands were rounded as opposed to pointy in iOS 5 and below. The logo on the left was only used for the iPad during iOS 6 in September 2012.
2013-present
2013-2015
This logo was used since the launch of iOS 7 in September 2013. The new clock icon acts as a real clock based the time of the device. In iOS 8.0 to 8.2, the minute and hour hands were bolder and longer. In iOS 8.3 to iOS 8.4.1, the minute and hour hands lost their boldness, but were the same length as before.
2015-present
This logo is used since the launch of iOS 9 in 2015. In 2016 with iOS 10, the seconds hand turned from red to orange.
Applications and services AirPort Utility | Animoji | App Store | Books | Calculator | Calendar | Camera | Classroom | Clock | Compass | Contacts | FaceTime | Feedback Assistant | Files | Find My | Fitness | Freeform | Game Center | GarageBand | Health | Home | iCloud | iMovie | iTunes Movie Trailers | iTunes Store | iWork (Keynote | Pages | Numbers) | Magnifier | Mail | Maps | Measure | Messages | Mindfulness | Music | Music Classical | News | Notes | Phone | Photos | Podcasts | Reminders | Safari | Settings | Shortcuts | Siri | Sports | Stocks | Support | Texas Hold'em | Tips | Translate | TV | Videos (China only) | Voice Memos | VoiceOver | Wallet | Watch | Weather Discontinued |