Why the date I get though Jira API is different though sprint report?

dchen_e4vcg2

I am trying to get sprint start date and end date though Jira API but the date I got is different from sprint report. 

eg: As this one shows, the sprint start date is 22/Apr/9:49 AM and end date is 06/May/20 10:02 AM.

But the data I got though Jira API, the start date is 

2020-04-22T16:49:51.162Z

and end date is 

2020-05-06T16:49:00.000Z

Is anyone can help me figure this out?