tst_qdatetime fails because of wrong locale on Win 10

********* Start testing of tst_QDateTime *********
Config: Using QtTest library 5.6.0, Qt 5.6.0 (x86_64-little_endian-llp64 shared (dynamic) release build; by MSVC 2015)
QDEBUG : tst_QDateTime::initTestCase() Current local time detected to be ahead of UTC but isn't the Central European timezone
PASS   : tst_QDateTime::initTestCase()
FAIL!  : tst_QDateTime::toString_textDate(localtime) Compared values are not the same
   Actual   (result)  : "ke tammi 2 01:02:03 2013"
   Expected (expected): "Wed Jan 2 01:02:03 2013"
tst_qdatetime.cpp(776) : failure location
FAIL!  : tst_QDateTime::toString_textDate(utc) Compared values are not the same
   Actual   (result)  : "ke tammi 2 01:02:03 2013 GMT"
   Expected (expected): "Wed Jan 2 01:02:03 2013 GMT"
tst_qdatetime.cpp(776) : failure location
FAIL!  : tst_QDateTime::toString_textDate(offset+) Compared values are not the same
   Actual   (result)  : "ke tammi 2 01:02:03 2013 GMT+1000"
   Expected (expected): "Wed Jan 2 01:02:03 2013 GMT+1000"
tst_qdatetime.cpp(776) : failure location
FAIL!  : tst_QDateTime::toString_textDate(offset-) Compared values are not the same
   Actual   (result)  : "ke tammi 2 01:02:03 2013 GMT-1000"
   Expected (expected): "Wed Jan 2 01:02:03 2013 GMT-1000"
tst_qdatetime.cpp(776) : failure location
PASS   : tst_QDateTime::toString_textDate(invalid)
PASS   : tst_QDateTime::cleanupTestCase()
Totals: 3 passed, 4 failed, 0 skipped, 0 blacklisted
********* Finished testing of tst_QDateTime *********