Sent Time is in UTC when using createReply

Question

Sent Time is in UTC when using createReply

Anonymous

When using the Reply() method everything works as it should, but a customer notified us that the Sent Time in the reply chain is not correct and is in UTC. I'm not sure if this is a bug or not, but I'm not sure how to correct this.

Example request url is

POST https://graph.microsoft.com/v1.0/me/messages/{message-id}/createReply

Reply receipt: Sent should read 4:11:52 PM (Original emails received date)

From: ######## - #### #### ##### <#####@####.com>
Sent: Tuesday, August 17, 2021 9:11:52 PM
To: #########
Subject: #######

Expected behavior
Have the Sent: header in the reply shown as it is when it originally came in. Currently it's being convert to UTC with no offset.

I have also tried adding the Prefer: outlook.timezone="Eastern Standard Time" header and this doesn't work too.

Sourced from https://github.com/microsoftgraph/msgraph-sdk-dotnet/issues/1108

Anonymous

2021-08-19T08:38:59.907+00:00

Similar issue posted at the link below
https://github.com/microsoftgraph/microsoft-graph-docs/issues/5035
cheong00 3,491 Reputation points Volunteer Moderator

2021-08-19T08:48:04.063+00:00

Seems that header is for Event only
Austin Davis 1 Reputation point

2021-08-23T18:50:31.66+00:00

Are there any more details on this? It is causing confusion with our clients.

Thank you!
cheong00 3,491 Reputation points Volunteer Moderator

2021-08-23T19:18:15.097+00:00

Fine, I'll convert it to comment then.

Just want to point out the header you use does not have effect on the time being displayed because that header is explicitly for "Event" message type only.

Btw, if your customer uses outlook.com or Hotmail webmail, be sure to check their own Microsoft Account settings because the time will always be that instead of Windows or mail server setting.
Austin Davis 1 Reputation point

2021-08-24T20:44:58.577+00:00

@cheong00 , This is all done from Graph API. The receipt or reply chain is text only. It would have nothing to do with the clients time zone... I can't tell if this is a bug or there is some way to specify the Timezone for the reply chain.
Tracie Carrel 0 Reputation points

2025-04-30T13:38:13.8766667+00:00

Is this still an issue or is there a way to adjust the time zone when creating an email reply? This is causing confusion on our customers end, thanks.