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Opening Times


The HRZ building is closed!

Telephone hours of the IT-Helpdesk: Monday to Friday between 8:00  and 16:30 o'clock.




Opening times of the HRZ building with
the IT-Helpdesk on the ground floor:

Monday to Friday: 7:30 - 21:30

Tel. 0228 / 73-2751
E-Mail: [Email protection active, please enable JavaScript.]

Special opening hours:

none at present


Operating hours

Computer systems and network components

  • Around the clock (24 hours, 7 days)
  • Maintenance times: after announcement in the current news e.g. on the WWW-homepage of the HRZ
  • Maintenance period usually Wednesday mornings


Fault hotline
Tel. 0228 / 73-3360

  • Monday to Friday: 8:00 - 16:30



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