diff --git a/src/features/form/sagas.js b/src/features/form/sagas.js
index 4ae6f45..7644316 100644
--- a/src/features/form/sagas.js
+++ b/src/features/form/sagas.js
@@ -77,7 +77,7 @@ function createObs(val, path, concept, formId, orderUuid, existingObsFlattened)
     // If the value is a date, re-format so it is compatible with date (yyyy-MM-dd) and datetime (yyyy-MM-dd HH:mm) formats expected by REST module
     // Really this seems like something that should be fixed in the REST module, but doing it here to keep changes contained
     // We don't have any access to concept metadata at this point, and so we are just hacking in an array of DATETIME_CONCEPTS that should use this handling
-    const dateTimeRegex = new RegExp("^([0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}\\.[0-9]{3}-[0-9]{2}:[0-9]{2})$");
+    const dateTimeRegex = new RegExp("^([0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}\\.[0-9]{3}[-,+][0-9]{2}:[0-9]{2})$");
     if (dateTimeRegex.test(val)) {
       if (DATETIME_CONCEPTS.indexOf(concept) !== -1) {
         val = val.substring(0, 16).replace("T", " ");