diff --git a/src/TzBot/ProcessEvents/Common.hs b/src/TzBot/ProcessEvents/Common.hs
index 377a485..0879993 100644
--- a/src/TzBot/ProcessEvents/Common.hs
+++ b/src/TzBot/ProcessEvents/Common.hs
@@ -22,7 +22,8 @@ import TzBot.Feedback.Dialog (insertDialogEntry)
 import TzBot.Feedback.Dialog.Types
 import TzBot.Logger
 import TzBot.Parser (parseTimeRefs)
-import TzBot.Render (ConversionPairs, asForModalM, renderAllConversionPairs, renderTemplate)
+import TzBot.Render
+  (ConversionPairs, ModalOrEphemeral(..), renderAllConversionPairs, renderTemplate)
 import TzBot.Slack (BotM, getUserCached, startModal)
 import TzBot.Slack.API
 import TzBot.Slack.API.MessageBlock
@@ -51,7 +52,7 @@ openModalCommon message channelId whoTriggeredId triggerId mkModalFunc = do
       whoTriggered <- getUserCached whoTriggeredId
       pure $
         renderAllConversionPairs whoTriggered $
-          renderTemplate asForModalM msgTimestamp sender neTimeRefs
+          renderTemplate IsModal msgTimestamp sender neTimeRefs
 
   guid <- ReportDialogId <$> liftIO genText
   let metadata = ReportDialogEntry
diff --git a/src/TzBot/ProcessEvents/Message.hs b/src/TzBot/ProcessEvents/Message.hs
index 3782388..2362844 100644
--- a/src/TzBot/ProcessEvents/Message.hs
+++ b/src/TzBot/ProcessEvents/Message.hs
@@ -182,7 +182,7 @@ processMessageEvent' evt mEventType sender timeRefs =
 
   handleChannelMessageCommon :: Maybe Text -> NonEmpty TimeReference -> BotM ()
   handleChannelMessageCommon mbPermalink neTimeRefs = do
-    let ephemeralTemplate = renderTemplate asForMessageM now sender neTimeRefs
+    let ephemeralTemplate = renderTemplate IsEphemeral now sender neTimeRefs
 
     let sendActionLocal userInChannelId = do
           userInChannel <- getUserCached userInChannelId
@@ -210,7 +210,7 @@ processMessageEvent' evt mEventType sender timeRefs =
     -- only to them, showing it in the way how other users would see
     -- it if it were sent to the common channel.
       let mbEphemeralMessage = renderAllConversionPairs sender $
-            renderTemplate asForModalM now sender neTimeRefs
+            renderTemplate IsModal now sender neTimeRefs
       whenJust mbEphemeralMessage $ \eph -> do
         logInfo [int||
           Received message from the DM, sending conversion to the author
diff --git a/src/TzBot/Render.hs b/src/TzBot/Render.hs
index ad2f351..0c9296d 100644
--- a/src/TzBot/Render.hs
+++ b/src/TzBot/Render.hs
@@ -26,9 +26,7 @@ module TzBot.Render
   , asForSenderS
   , asForOthersS
 
-  , ModalFlag
-  , asForModalM
-  , asForMessageM
+  , ModalOrEphemeral(..)
   ) where
 
 import TzPrelude
@@ -133,27 +131,29 @@ renderSlackBlocks forSender =
       withMaybe mbNote [conversionBlock] $ \note -> [conversionBlock, mkNoteBlock note]
 
 -- | Render a template that can be later specialized to different users.
-renderTemplate :: ModalFlag -> UTCTime -> User -> NE.NonEmpty TimeReference -> Template
-renderTemplate modalFlag now sender timeRefs =
-  Template $ NE.map (renderEphemeralMessageConversionPair modalFlag sender)
+renderTemplate :: ModalOrEphemeral -> UTCTime -> User -> NE.NonEmpty TimeReference -> Template
+renderTemplate modalOrEphemeral now sender timeRefs =
+  Template $ NE.map (renderEphemeralMessageConversionPair modalOrEphemeral sender)
     $ attach (timeReferenceToUTC (uTz sender) now) timeRefs
 
--- | This flag defines whether time references are rendered to be shown
--- in a chat or in a modal view.
-newtype ModalFlag = ModalFlag Bool
-
-asForModalM, asForMessageM :: ModalFlag
-asForModalM = ModalFlag True
-asForMessageM = ModalFlag False
+-- | This flag defines whether a time reference conversion will be rendered
+-- in an ephemeral message or in a modal view.
+data ModalOrEphemeral = IsModal | IsEphemeral
+  deriving stock (Eq, Show)
 
+-- | Renders a time reference and the result of a successful conversion.
+--
+-- Returns `Nothing` when we're attempting to render an ephemeral message
+-- for the sender of the original message,
+-- and the time reference is relative to the sender's timezone.
 renderOnSuccess
-  :: ModalFlag
+  :: ModalOrEphemeral
   -> User
   -> TimeReference
   -> TimeRefSuccess
   -> User
   -> Maybe ConversionPair
-renderOnSuccess (ModalFlag forModal) sender timeRef timeRefSucess user = do
+renderOnSuccess modalOrEphemeral sender timeRef timeRefSucess user = do
   let userTzLabel = uTz user
       renderedUserTime = do
         let q = renderUserTime userTzLabel timeRefSucess.trsUtcResult
@@ -166,7 +166,7 @@ renderOnSuccess (ModalFlag forModal) sender timeRef timeRefSucess user = do
           then Just renderedUserTime
           else do
             let isNotSender = ((/=) `on` uId) sender user
-                shouldShowThisConversion = isNotSender || forModal
+                shouldShowThisConversion = isNotSender || (modalOrEphemeral == IsModal)
             guard shouldShowThisConversion
             Just renderedUserTime
       totalClockChanges = checkForClockChanges timeRef timeRefSucess userTzLabel
@@ -345,13 +345,13 @@ shownTimezoneOnErrors implicitSenderTimezone tzLabel forSender
 -- and under `Right` we collect valid time references that should be rendered differently
 -- for each user.
 renderEphemeralMessageConversionPair
-  :: ModalFlag
+  :: ModalOrEphemeral
   -> User
   -> (TimeReference, TimeReferenceToUTCResult)
   -> EitherTemplateUnit
-renderEphemeralMessageConversionPair modalFlag sender (timeRef, result) = case result of
+renderEphemeralMessageConversionPair modalOrEphemeral sender (timeRef, result) = case result of
   TRTUSuccess timeRefSuc ->
-    Right $ renderOnSuccess modalFlag sender timeRef timeRefSuc
+    Right $ renderOnSuccess modalOrEphemeral sender timeRef timeRefSuc
   TRTUAmbiguous overlapInfo ->
     Left $ renderOnOverlap sender timeRef overlapInfo
   TRTUInvalid gapInfo ->
diff --git a/test/Test/TzBot/RenderSpec.hs b/test/Test/TzBot/RenderSpec.hs
index f2dde83..d62ce0c 100644
--- a/test/Test/TzBot/RenderSpec.hs
+++ b/test/Test/TzBot/RenderSpec.hs
@@ -254,19 +254,19 @@ convertWithoutNotes :: Text -> Text -> ConversionPair
 convertWithoutNotes q w = ConversionPair q w Nothing Nothing
 
 mkModalCase :: HasCallStack => UTCTime -> Text -> User -> User -> [ConversionPair] -> Assertion
-mkModalCase = mkTestCase asForModalM
+mkModalCase = mkTestCase IsModal
 
 mkChatCase :: HasCallStack => UTCTime -> Text -> User -> User -> [ConversionPair] -> Assertion
-mkChatCase = mkTestCase asForMessageM
+mkChatCase = mkTestCase IsEphemeral
 
 convertWithCommonNote :: Text -> Text -> Text -> ConversionPair
 convertWithCommonNote q w e = ConversionPair q w (Just e) (Just e)
 
-mkTestCase :: HasCallStack => ModalFlag -> UTCTime -> Text -> User -> User -> [ConversionPair] -> Assertion
-mkTestCase modalFlag eventTimestamp refText sender otherUser expectedOtherUserConversions = do
+mkTestCase :: HasCallStack => ModalOrEphemeral -> UTCTime -> Text -> User -> User -> [ConversionPair] -> Assertion
+mkTestCase modalOrEphemeral eventTimestamp refText sender otherUser expectedOtherUserConversions = do
   let [timeRef] = parseTimeRefs refText
       ephemeralTemplate =
-        renderTemplate modalFlag eventTimestamp sender $
+        renderTemplate modalOrEphemeral eventTimestamp sender $
           NE.singleton timeRef
 
       otherUserConversions = renderAllConversionPairs otherUser ephemeralTemplate