QReserve supports exporting your personal reservation calendar, the lab calendar, or individual resources, via the industry standard iCalendar format. 

Simply visit your profile page in QReserve (clicking your name in the top right corner) and scroll down to the Private Settings section. Copy the calendar feed URL, ending in .ics, and then load it into your external calendar application as a calendar feed, or external calendar subscription. The particular details for this vary between calendar applications.

Timezone Note: Calendar events are exported in UTC timezone format to allow your calendar application to automatically convert them to your local time. Events viewed on QReserve are always shown in your site's local timezone setting. This means that the time displayed in your calendar application may be different from the time shown in QReserve if your computer is setup to be in a different timezone from your QReserve site.

Outlook.com Calendar

Please refer to the Subscribe to a Calendar section of this Microsoft article.

Google Calendar

Google calendar feeds can be added by selecting Add By URL under the Other calendars dropdown. 

Note: Google can sometimes take 8-24 hours to update new reservation information. This is a current limitation of Google calendar's other calendars feature.
Google Calendar Add By Url