Help with cron script in footer

[induslady]

Hello All,

I have a lot of customization done in footer template, PFA the screen shot - compare versions.

I notice the below -

1) auto DST correction code - completely removed

2)Call for Cron script - {vb:raw cronimage} repeated at two instances

3)Copyright notice repeated at two instances

Can anyone clarify the below-

1)What is the purpose of auto DST correction codes?

2) Does repetition of call for cron script affect the scheduled tasks running ?

Thanks in advance.