No, it's correct for the Canadian calendar.....
ps....(just in case) between...
preposition
1. in the space separating (two points, objects, etc.): between New York and Chicago.
2. intermediate to, in time, quantity, or degree: between twelve and one o'clock; between 50 and 60 apples; between pink and red.
3. linking; connecting: air service between cities.
4. in portions for each of (two people): splitting the profits between them.
5. among: sharing the responsibilities between the five of us.