CLLocation时间戳始终为零

Question

The CLLocation timestamp is always zero on iPhone 6+, IOS 11.4, Xcode 9.4.1.

Latitude: 30.598748 Longitude: -97.820877 Altitude: 308.921658 HAccuracy: 10.000000 VAccuracy: 4.000000 Timestamp: 0.000000 <======

Is there some setting that will give me accurate timestamp? Here is the code that prints it:

print("Latitude: \(String(format: "%.6f", location.coordinate.latitude))")
print("Longitude: \(String(format: "%.6f", location.coordinate.longitude))")
print("Altitude: \(String(format: "%.6f", location.altitude))")
print("HAccuracy: \(String(format: "%.6f", location.horizontalAccuracy))")
print("VAccuracy: \(String(format: "%.6f", location.verticalAccuracy))")
print("Timestamp: \(String(format: "%.6f", location.timestamp as CVarArg))")

Answer 1

The timestamp is an object of type Date . It should print with this:

print("Timestamp: \(String(format: "%@", location.timestamp))")