Scheduled downtimes

Date	Time	Tasks	Impact and explanation
Every 2nd Tuesday	03:00-04:00	Windows Updates	All windows servers will receive updates and boot when needed.
Every Thursday	00:00-01:00	Reserved for small maintenance	Every thursday, a small maintenance window is scheduled which can be used for any small changes which have minimal or medium impact, eg. - Hickups of network traffic (eg. because of changes on network devices) - Small outage of a single service (eg. because of the reboot of a webserver or mailserver)
Every last weekend of the month	saturday 0:00-06:00 sunday 0:00-06:00	Reserved for large maintenance	Every last weekend of the month, a large maintenance window is scheduled which can be used for any big maintenance actions. This window has a larger impact and can take longer than a maintenance window on a thursday evening. This maintenance window can be used for platform changes, server movements and large migrations. During this window it can occur that one or multiple services are unavailable and there is no internet/network traffic possible. A last weekend of the month needs to have at least the friday and saturday within that month, sunday can be the 1st of the new month.

All times are in timezone: GMT +01:00 (+ DST)