Invalid timestamp in parameter 'Close Date' (SOLVED)

[jaysonb]

Hi,

I keep getting an "Invalid timestamp in parameter 'Close Date' error when creating a deal. My HubSpot timezone is set to UTC -07:00 Pacific Time.

I tried every combination of date, date/time and still can't figure out what HubSpot wants from me.

Any suggestions?

[Derek_Gervais]

Hi @jayson_brown,

I know this is marked as solved, but I wanted to leave this resource here in case anyone else runs into date formatting issues:

developers.hubspot.com

How should timestamps be formatted for HubSpot's APIs?

HubSpot API endpoints accept UNIX formatted timestamps in milliseconds. Most scripting languages have built-in functions or existing libraries that handle time conversion, but you must ensure that your timestamp values are in the correct UNIX...