diff --git a/xero_accounting.yaml b/xero_accounting.yaml
index 158806bfc..ac69f42db 100644
--- a/xero_accounting.yaml
+++ b/xero_accounting.yaml
@@ -20902,10 +20902,10 @@ components:
           type: string
           format: uuid
         DateString:
-          description: Date the payment is being made (YYYY-MM-DD) e.g. 2009-09-06
+          description: Date the payment is being made, provided as an ISO 8601 datetime string in the format YYYY-MM-DDTHH:mm:ss e.g. 2018-10-03T00:00:00
           type: string
         Date:
-          description: Date the payment is being made (YYYY-MM-DD) e.g. 2009-09-06
+          description: Date the payment is being made, provided as a Unix timestamp in milliseconds with an optional UTC offset e.g. \/Date(1721347200000+0000)\/
           type: string
           x-is-msdate: true
         Amount:
@@ -23728,7 +23728,7 @@ components:
           description: Code of account you are using to make the payment e.g. 001 (note- not all accounts have a code value)
           type: string
         Date:
-          description: Date the payment is being made (YYYY-MM-DD) e.g. 2009-09-06
+          description: Date the payment is being made, provided as a Unix timestamp in milliseconds with an optional UTC offset e.g. \/Date(1721347200000+0000)\/
           type: string
           x-is-msdate: true
         CurrencyRate: