tai-time

Is there a way to get the current GPS time and TAI time ? ( System.currentTimeMillis() 's return value is POSIX time, which isn't a linear representation of time. ) Your option is to look at the ThreeTen project, which is the reference implementation of the JSR-310 (new Java Date and Time spec). You can find a TAIInstant class in the javadocs It's claimed to be still in alpha, though 来源： https://stackoverflow.com/questions/8849553/how-to-get-gps-time-and-tai-time-in-java

How can I obtain the current TAI time in milliseconds in Linux using either Java or C++? The reason I need this is to be able to accurately take timestamps over a long period of time (on the order of years) and still be able to compare them, without worrying about leap seconds. It is possible for multiple measurements to take place during a leap second and all measurements need to be unambiguous, monotonically increasing, and linearly increasing. This will be a dedicated Linux server. This is for a scientific project which needs precision of about .5 seconds. I do not currently wish to invest