Hopefully, the weather will improve and some early blossom appears. Flowering currant is usually the earliest nectar yielder, but oil seed rape (OSR) flower at about the same time.
The odd drone should start to appear and the rate of brood rearing should increase dramatically to give rapid expansion of the colony. On a fine day when the bees are flying, find and mark the queen so that she can be recognised more easily later on. Put a queen excluder and super of drawn combs when necessary.
If you folow the recommended colour for marking your queens - here is a reminder. The colour depends on the last digit of the year.
0 = Blue 1 = White 2 = Yellow 3 = Red 4 = Green, the sequence then repeats so 5 = Blue 6 = White 7 = Yellow 8 = Red 9 = Green
Two or three hours for the month.