![postgresql - How to estimate time spent within a location using GPS/ timestamp data in PostGIS? - Geographic Information Systems Stack Exchange postgresql - How to estimate time spent within a location using GPS/ timestamp data in PostGIS? - Geographic Information Systems Stack Exchange](https://i.stack.imgur.com/LiVFW.jpg)
postgresql - How to estimate time spent within a location using GPS/ timestamp data in PostGIS? - Geographic Information Systems Stack Exchange
![C++ : Using std::chrono / date::gps_clock for converting a double gps timestamp to utc/tai - YouTube C++ : Using std::chrono / date::gps_clock for converting a double gps timestamp to utc/tai - YouTube](https://i.ytimg.com/vi/p6fDS6DTb0c/maxresdefault.jpg)
C++ : Using std::chrono / date::gps_clock for converting a double gps timestamp to utc/tai - YouTube
![Tools.Valarm.net – GPS Sensors Give You More Accurate Timestamps for Industrial IoT, Telemetry, and Remote Monitoring Tools.Valarm.net – GPS Sensors Give You More Accurate Timestamps for Industrial IoT, Telemetry, and Remote Monitoring](https://www.valarm.net/wp-content/uploads/2016/07/Valarm-Tools-Cloud-Remote-Monitoring-Industrial-IoT-Sensor-Telemetry-Remote-Monitoring-GPS-Sensosrs-for-Accurate-Time-Stamps-Timestamps-6.jpg)
Tools.Valarm.net – GPS Sensors Give You More Accurate Timestamps for Industrial IoT, Telemetry, and Remote Monitoring
![VLP-16 /apollo/sensor/velodyne16/PointCloud2/header Timestamp is not GPS Time · Issue #5360 · ApolloAuto/apollo · GitHub VLP-16 /apollo/sensor/velodyne16/PointCloud2/header Timestamp is not GPS Time · Issue #5360 · ApolloAuto/apollo · GitHub](https://user-images.githubusercontent.com/16414165/44149598-43bb0eac-a0cf-11e8-9a0d-7f705d9301ff.png)