As far as I understand ClearPass uses internally timestamps that are independent to the localization of the clients.
In the user forms, the timestamp may be localized, but most fields have a 'date picker' that prevent issues with MM/DD or DD/MM as you just select the date on a calendar. My own lab system uses YYYY-MM-DD HH:SS which should work for anyone as well, not even sure if the language changes the date format; but if it does, it should not be an issue.
Not sure what the exact issues are, so it may be useful to show that to your partner or Aruba Support to find out what is happening. I'm not aware of such issues, and for guest users accessing the network (so not operators), I can't imagine what could go/be wrong. And for operators there should not be an issue either.
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Herman Robers
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If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
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