Disclaimer: I own nothing of Sigma 6, which is owned by Hasbro. Only the plot is mine.
If there was one unit of time that the whole team hated, then it was 'tomorrow'.
'Tomorrow' covered so much and was so unknown that in their line of work, 'tomorrow' could be the most dangerous thing of all.
So if they could get something done, they'd do it as soon as possible. Magic could be horribly tricky to work with and no one wanted to contemplate what consequences could result from a delay of even a couple hours, let alone a whole day.