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This server is located in Qatar and part of the NTP pool project. See http://www.pool.ntp.org/en/use.html for information on how to use pool servers.
This server (gw.qstrs.com) is synchronised to three independant GPS locked Network Time servers located in different parts of Doha on a private network. If you need to contact the administrator then email support (at) qstrs (dot) com.
If you require support on QSTRS.COM please contact Moustafa Hammouda +974 66935441 or email support (at) qstrs (dot) com