Fixed Time Display

Jen Dusseljee
2018-01-24T20:47:58+01:00

Closes #36

#### Previous behaviour
Steps to reproduce:

1. Open event page.
2. Displayed: "Aanmelden opent, HH:m".

#### New behaviour
Steps to validate that it works:

1. Open event page.
2. Displayed: "Aanmelden opent, HH:mm".