From c7a94b5003143b546b3da5159b0ead164f155517 Mon Sep 17 00:00:00 2001
From: ScrubN <72096833+ScrubN@users.noreply.github.com>
Date: Fri, 29 Dec 2023 23:25:44 -0500
Subject: [PATCH] Reduce allocations when writing plaintext relative chats less
 than 24 hours long

---
 TwitchDownloaderCore/Chat/ChatText.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/TwitchDownloaderCore/Chat/ChatText.cs b/TwitchDownloaderCore/Chat/ChatText.cs
index df09a61b..31930e81 100644
--- a/TwitchDownloaderCore/Chat/ChatText.cs
+++ b/TwitchDownloaderCore/Chat/ChatText.cs
@@ -39,7 +39,14 @@ public static async Task SerializeAsync(string filePath, ChatRoot chatRoot, Time
                 else if (timeFormat == TimestampFormat.Relative)
                 {
                     var time = TimeSpan.FromSeconds(comment.content_offset_seconds);
-                    await sw.WriteLineAsync(string.Create(TimeSpanHFormat.ReusableInstance, @$"[{time:H\:mm\:ss}] {username}: {message}"));
+                    if (time.Ticks < 24 * TimeSpan.TicksPerHour)
+                    {
+                        await sw.WriteLineAsync(@$"[{time:h\:mm\:ss}] {username}: {message}");
+                    }
+                    else
+                    {
+                        await sw.WriteLineAsync(string.Create(TimeSpanHFormat.ReusableInstance, @$"[{time:H\:mm\:ss}] {username}: {message}"));
+                    }
                 }
                 else if (timeFormat == TimestampFormat.None)
                 {