I want to create a downtime for all Incidents in a system profile for particular timeframe. But when I rgt click on a system profile to create a downtime it is showing for maximum 99 hours I can set. But I want to set for more then that time.
Is there a way to set start time on a date and end time on a date?
This page has the rest call you can make to create downtimes and lets you manually specify a duration for the downtime. If the 99 limit is just in the client this might let you specify a longer window:
I have gone through the link I understand that I can use PUT interface to add a Incident downtime. I pasted below URL in browser
changing server name and profile name.
What is downtimename here? Do I need to create a downtime first and then follow this?
Where should I mention as PUT?
You won't be able to do that in the browser, you need to send XML in the post request telling it the details about the downtime:
There are tools and browser extensions to allow you to do this such as Postman.