iOS: Apple's been busy touting the "proactive" features in iOS, but one of the most actually useful aspects of that comes in the Calendar app. As Finer Things in Tech reminds us, if you set up an alert in Calendar for "Time to Leave", your iPhone will keep an eye on traffic conditions between your current location and your next appointment. Obviously, this is only useful with a couple parameters in play. First off, your calendar events need to include a location in them. Second, you actually need to use the built-in Calendar app for this. To set this all up, create a new event, type in the location, select the "Alert" option, then chose "Time to Leave". Now, no matter where you're at, Calendar will send you an alert when you need to leave for your next event using the current traffic conditions. Unfortunately, it only works with driving directions and won't integrate transit or walking. Still, though this live traffic and location feedback was introduced back in iOS 9, it's an easy little feature to miss, especially if you use a third-party calendar. Of course, Google's had this for a while, but it's nice that people who use Apple's apps can get in on the fun.
Calendar for iOS Can Alert You When It's Time to Leave for Your Next Event [Finer Things in Tech]