question

brialger

If you eat at midnight and log it does it count for the new day or the previous day?

gothchiq

MFP automatically puts it on the new day.

PaulaWallaDingDong

It will get logged onto the next day unless you switch it back to the day before

If you're asking what day you should log it: as long as you're deducting it from somewhere and not going over the calories for that day, it doesn't matter.