How to format a date as a constant.

I have a Constants class file in my solution that is used for roles and messages and I need to create one for date formatting. Currently on several views, I have the date formatted as 

<div><div class="card-body"><h4 class="card-title"><a class="forum-orange"
                       style="text-decoration:underline"
                       asp-action="Packet"
                       asp-controller="Home"
                       asp-route-packetId="@Model.PacketId">
                        Meeting: 
                        @Model.Title</a></h4><div class="card-text">
                    Meeting date: <b> @Model.MeetingDateTime.ToString("dddd, MMMM dd yyyy h:mm tt")</b></div><div class="card-text">
                    Meeting time:<b> @Model.MeetingDateTime.ToString("hh:mm tt") </b></div><p class="card-text"><h6 class="forum-orange">
                        Voting has expired on<br/>  @Model.CODateTime.ToString("dddd, MMMM dd yyyy h:mm tt")</h6></p></div></div>

I added this to my constants class:

 public static class FormatDate
        {

           public const string DEFAULT_DATE_FORMAT = "dddd, MMMM dd yyyy h:mm tt";

        }

And this updated the view:

<div><div class="card-body"><h4 class="card-title"><a class="forum-orange"
                       style="text-decoration:underline"
                       asp-action="Packet"
                       asp-controller="Home"
                       asp-route-packetId="@Model.PacketId">
                        Meeting: 
                        @Model.Title</a></h4><div class="card-text">
                    Meeting date: <b> @Model.MeetingDateTime.ToString(Constants.FormatDate.DEFAULT_DATE_FORMAT)</b></div><div class="card-text">
                    Meeting time:<b> @Model.MeetingDateTime.ToString("hh:mm tt") </b></div><p class="card-text"><h6 class="forum-orange">
                        Voting has expired on<br/> @Model.CODateTime.ToString(Constants.FormatDate.DEFAULT_DATE_FORMAT)</h6></p></div></div>

Would this be correct?