gSuite Integeration Admin SDK Report API Date format - google-workspace

Question

Hi Guys I am currently working on Gsuite Admin SDK Report API. I am successfully able to send the request and getting the response.
Now, the issue is that I am not able to identify the date format returned by the Activities.list().
Here is a snippet:
"events": [
{
"type": "event_change",
"name": "create_event",
"parameters": [
{
"name": "event_id",
"value": "jdlvhwrouwovhuwhovvwuvhw"
},
{
"name": "organizer_calendar_id",
"value": "abc#xyz.com"
},
{
"name": "calendar_id",
"value": "abc#xyz.com"
},
{
"name": "target_calendar_id",
"value": "abc#xyz.com"
},
{
"name": "event_title",
"value": "test event 3"
},
{
"name": "start_time",
"intValue": "63689520600"
},
{
"name": "end_time",
"intValue": "63689524200"
},
{
"name": "user_agent",
"value": "Mozilla/5.0"
}
]
}
]
Note: Please have a look at start_time and end_time and let me know if you guys have any idea about it.
Please have a look and share some info and let me know if any other infomation is needed.

Answer 1

I ran into this same question when parsing google calendar logs.
The time format they use are the number of seconds since January 1st, 0001 (0001-01-01).
I never found documentation where they referenced that time format. Google uses this instead of epoch for some of their app logs.
You can find an online calculator here https://www.epochconverter.com/seconds-days-since-y0
Use the one under "Seconds Since 0001-01-01 AD" and not the one under year zero.
So your start_time of "63689520600" converts to March 30, 2019 5:30:00 AM GMT.
If you want start_time to be in epoch, you could subtract 62135596800 seconds from the number. 62135596800 converts to January 1, 1970 12:00:00 AM when counting the number of seconds since 0001-01-01. Subtracting 62135596800 from the start_time would give you the number of seconds since January 1, 1970 12:00:00 AM AKA Epoch Time.
Hope this helps.