Change Code overnight

[Benniit]

Hello, am using VB6 and i have a code in this format 0001.
And I want the code to change the following day as 0002 and the next day 0003 in that order. I want it to change just like the system time.

Thank you.

Ben

[anuragshrivastava64]

can u elaborate it a little further

[debasisdas]

How your vb code is in 0001 format .

What is that format ?