Changing timezone of instance for ilm and slm

Hi,
I have elasticsearch running on one instance, logstash and kibana together on another separate instance with UTC timezone, so ilm and slm policy is running according to the UTC timezone. If I change the both server timezone to IST, will the ilm and slm policy run according to IST timezone.

Also if I change the timezone for both server from UTC to IST, will it create any issue for already running setup.