My test to resist temptation is complete, and I passed. I can now officially start eating my remaining Christmas candy without violating my restriction. That was among the easiest "challenges" I've ever undertaken: for the most part I forgot about my chocolates, allowing them to remain in my bedroom without me considering opening them prior to the deadline.
I'm looking forward to opening my box of Ferrero Rocher chocolates tomorrow. I could have opened them today, but the 4th of February was merely the earliest time I could legitimately open them, not the scheduled date.