How long should a port from Telecom mobile to B+W usually take?

Does this happen over weekends?
I registered my SIM yesterday afternoon and the porting process was started, and the lady on the phone indicated that the porting process didnt seem to take long, however we are now a day later and nothing as yet. When my GF ported from Telecom to Vodafone the port took about 2 hours.
What is the norm? Should I follow up or is it too soon?