diff --git a/Directory.Build.props b/Directory.Build.props
index 0d2bbcb4..fe5bb194 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -37,6 +37,23 @@
     <IsShipping>true</IsShipping>
   </PropertyGroup>
 
+  <!--
+    Arcade only allows the revision to contain up to two characters, and AppVeyor does not roll-over
+    build numbers every day like Azure DevOps does. To balance these two requirements, set the official
+    build ID to be the same format as the built-in default from Arcade, except with the revision number
+    being the number of the quarter hour of the current time of day (24 * 4 = 96, which is less than 100).
+    So a build between 00:00 and 00:14 would have a revision of 1, and a build between 23:45 and 23:59:59
+    would have a revision of 97.
+  -->
+  <PropertyGroup Condition=" '$(APPVEYOR)' == 'True' AND '$(APPVEYOR_PULL_REQUEST_NUMBER)' == '' ">
+    <_Hours>$([MSBuild]::Multiply($([System.DateTime]::Now.ToString(HH)), 4))</_Hours>
+    <_QuarterHours>$([MSBuild]::Divide($([System.DateTime]::Now.ToString(mm)), 15))</_QuarterHours>
+    <_QuarterHours>$([System.Math]::Floor($(_QuarterHours)))</_QuarterHours>
+    <_AppVeyorBuildRevision>$([MSBuild]::Add($(_Hours), $(_QuarterHours)))</_AppVeyorBuildRevision>
+    <_AppVeyorBuildRevision>$([MSBuild]::Add($(_AppVeyorBuildRevision), 1))</_AppVeyorBuildRevision>
+    <OfficialBuildId>$([System.DateTime]::Now.ToString(yyyyMMdd)).$(_AppVeyorBuildRevision)</OfficialBuildId>
+  </PropertyGroup>
+
   <ItemGroup Condition=" '$(OS)' != 'Windows_NT' ">
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" PrivateAssets="All" Version="1.0.0-preview.2" />
   </ItemGroup>