2 minutes before, the manager informed 1 employee a; In the second 2 minutes, the manager and employee A inform employee B and employee C; In the third 2 minutes, 4 people will inform 4 people again; In the fourth 2 minutes, 8 people will inform 8 people again; The fifth 2 minutes, 16 people will inform 16 people; In the sixth 2 minutes, 32 people can notify 32 people (actually only 29 people can be notified).

The formula is as follows: 1+2+4+8+ 16+32=63 people (more than 60 people).

2×6= 12 (minutes)

A: You can notify in 12 minutes at the earliest.