Dashboard doesn't displays last 5 minutes but it displays last 15 minutes

Currently we are running Grafana and influx Db docker images on CentOS7, and getting metric data from telegraf to Influx Db.
I trying to prepare dashboard by selecting influx Db as data source, it displays graph data when selected last 15 minutes but not from last 5 minutes and also it displays extra 5 minutes in dashboard.
I will be grateful for any help you can provide.

Narender Gaddam