Never heard of one personally. Not a concept I was familar with until I came to Germany. But since we "ring in the New Year," perhaps you can do something with that.

Tonight we are going to celebrate past midnight, and therefore into her birthday, which does not actually start until tomorrow.

Only a weak attempt ...
I hope it helps a bit....

Geburtstag:
We are going to see in my sister's birthday.

Wenn man ins Neue Jahr reinfeiert:
We would like to see in the New Year in Tokyo.
I hope you enjoyed seeing in the New Yeat in Tokyo.

Hineinfeiern sagte man wohl frueher, heute hat sich das auf 'reinfeiern' verkuerzt.