improve accuracy of timestamps

lib/memex_web/components/core_components.ex

@@ -89,14 +89,14 @@ defmodule MemexWeb.CoreComponents do
   attr :datetime, :any, required: true, doc: "A `DateTime` struct or nil"
 
   @doc """
-  Phoenix.Component for a <time> element that renders the naivedatetime in the
+  Phoenix.Component for a <time> element that renders the DateTime in the
   user's local timezone
   """
   def datetime(assigns)
 
-  @spec cast_datetime(NaiveDateTime.t() | nil) :: String.t()
-  defp cast_datetime(%NaiveDateTime{} = datetime) do
-    datetime |> DateTime.from_naive!("Etc/UTC") |> DateTime.to_iso8601(:extended)
+  @spec cast_datetime(DateTime.t() | nil) :: String.t()
+  defp cast_datetime(%DateTime{} = datetime) do
+    datetime |> DateTime.to_iso8601(:extended)
   end
 
   defp cast_datetime(_datetime), do: ""

lib/memex_web/live/invite_live/index.ex

@@ -93,7 +93,7 @@ defmodule MemexWeb.InviteLive.Index do
         %{"id" => id},
         %{assigns: %{current_user: current_user}} = socket
       ) do
-    now = NaiveDateTime.utc_now() |> NaiveDateTime.truncate(:second)
+    now = DateTime.utc_now()
 
     socket =
       Invites.get_invite!(id, current_user)