cant filter results by Created_Time

cant filter results by Created_Time

Hi,

I'm trying to get the calls made in the last week from v2 API. For some reason it always tells me invalid query. 

Here is the url:
https://www.zohoapis.com/crm/v2/Calls/search?criteria=(Created_Time:greater_than:2024-03-29T00:00:00)

response:
{"code":"INVALID_QUERY","details":{"reason":"invalid operator found","api_name":"Created_Time","operator":"greater_than"},"message":"invalid query formed","status":"error"}

if I do a equals then it works (but returns no records since that exact date and time didn't have any calls)

response = empty string