All dates and times in Channeltivity are recorded in GMT/UTC and when information from a "Date" or "DateTime" field in Channeltivity is pushed into a "DateTime" property in HubSpot (such as the built-in Close Date property in HubSpot), HubSpot automatically converts the date and time to the timezone of the User viewing the record in HubSpot.
For example, the custom DateTime field in Channeltivity (highlighted in red) in the below screenshot is mapped to HubSpot's built-in Close Date property, which is a DateTime property. The Channeltivity field shows July 30, 2019 2:30 AM GMT, but in HubSpot, it shows July 29, 2019, 10:30PM EDT (see second screenshot).
Custom DateTime Field- Channeltivity
Close Date Property - HubSpot
How can I fix this issue?
Instead of mapping Date and DateTime fields in Channeltivity to "DateTime" properties in HubSpot, we recommend you map them to custom "Date Picker" properties. HubSpot does not apply timezone formatting/conversion to Date Picker properties, so it will eliminate the timezone confusion for your HubSpot Users.