8

I want this command in windows with cygwin installed, so any Linux command will work for me.

5

date +%H:%M:%S:%N will give you the current time with nano seconds, you could then chop off however many digits or rearrange the time to how you wish to have it.

date --help can give you some other configuration options

16

If you want to get milliseconds instead of nanoseconds, you may simply use %3N to truncate the nanoseconds to the 3 most significant digits:

$ date +"%Y-%m-%d %H:%M:%S,%3N"
2014-01-08 16:00:12,746

or

$ date +"%F %T,%3N"
2014-01-08 16:00:12,746

testet with »GNU bash, Version 4.2.25(1)-release (i686-pc-linux-gnu)«

Also tested successfully in my cygwin installation.

But be aware, that %N may not implemented depending on your target system or bash version. Tested on an embedded system »GNU bash, version 4.2.37(2)-release (arm-buildroot-linux-gnueabi)« there was no %N:

date +"%F %T,%N"
2014-01-08 16:44:47,%N
  • Since date is not a shell builtin, date --version or similar are relevant, not the exact shell version. – Daniel Beck Apr 12 '14 at 17:24
  • 1
    You're right. In this case, it was busybox v1.21.0 (buildroot rootfs, compiled using a non-HF arm cross toolchain). date --version gave unrecognized option error there. – Joe Apr 12 '14 at 23:38
  • 1
    Does not work on MacOS unfortunately – cmcginty Apr 29 '18 at 1:32
  • 4 years later and I gotta say THANK YOU I just learned that you can truncate from the date command itself. Amazing. – emmdee Aug 23 '18 at 23:18

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