请问CHN的国际学生办公室假期的时候还开门吗？

想去学校办个打工的证明，不知道ISO开门不开门，请大家帮帮忙！谢谢

Altered Opening hours summer holiday

To: all students and employees
From: ESO and Facilities

CHN shop9 July up to 20 July 09.00 to 11.30 hours 23 July up to 3 August closed 6 August up to 27 August 09.00 to 11.30 hours Studielandschap2 July up to 20 July Monday 10.30 to 17.00 hours Tuesday up to Friday 08.30 to 17.00 hours 23 July up to 10 August closed 13 August up to 17 August 13.00 to 17.00 hours 20 August up to 24 August Monday 10.30 to 17.00 hours Tuesday up to Friday 08.30 to 17.00 hours i study23 July up to 3 August 09.00 to 13.00 hours i tech23 July up to 17 August desk closed, you can reach i tech by phone (limited) from 08.30 to 16.00 hours 20 August up to 24 August8.30 to 16.00 hours   Language Centre
5 July up to 31 Augustno translation service available9 July up to 6 AugustLC closed