Depends on Cycle Length...For Example:
12 week test e cycle
12 weeks on gear
2 week break (depending on ester of test you are using)
4 week PCT
12 weeks off gear (time on = time off
this equals 30 weeks. This is following standard protocol.
So based on that You can start your 2cnd cycle in the same year 30 weeks later
but it would end up finishing in the next year.
You can use this method with pretty much any cycle...( there are exceptions and this is just my advice based on general rule of thumb )