Dates and Times

All dates and times must be formatted using ISO 8601.

Date

Use the format: YYYY-MM-DD
Example: 2025-02-20 (represents 20 February 2025) Use this format for values like a customer’s birthday. Dates should reflect the customer’s local timezone context.

DateTime

Use the format: YYYY-MM-DDTHH:mm:ss.sssZ
Example: 2025-02-20T09:15:00.000Z (UTC time)

Ensure all DateTime values are in UTC and include the trailing Z.