diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 35d20f513..fc6ae082b 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -71,6 +71,8 @@ android {
             isMinifyEnabled = true
             isShrinkResources = true
             setProguardFiles(listOf(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro"))
+
+            buildConfigField("String", "BUILD_TIME", "\"${getBuildTime(useLastCommitTime = true)}\"")
         }
         create("benchmark") {
             initWith(getByName("release"))
diff --git a/buildSrc/src/main/kotlin/mihon/buildlogic/Commands.kt b/buildSrc/src/main/kotlin/mihon/buildlogic/Commands.kt
index bfffb8883..850364a31 100644
--- a/buildSrc/src/main/kotlin/mihon/buildlogic/Commands.kt
+++ b/buildSrc/src/main/kotlin/mihon/buildlogic/Commands.kt
@@ -1,6 +1,7 @@
 package mihon.buildlogic
 
 import org.gradle.api.Project
+import java.time.Instant
 import java.time.LocalDateTime
 import java.time.ZoneOffset
 import java.time.format.DateTimeFormatter
@@ -19,9 +20,13 @@ fun Project.getGitSha(): String {
 
 private val BUILD_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss'Z'")
 
-@Suppress("UnusedReceiverParameter")
-fun Project.getBuildTime(): String {
-    return LocalDateTime.now(ZoneOffset.UTC).format(BUILD_TIME_FORMATTER)
+fun Project.getBuildTime(useLastCommitTime: Boolean = false): String {
+    return if (useLastCommitTime) {
+        val epoch = runCommand("git log -1 --format=%ct").toLong()
+        Instant.ofEpochSecond(epoch).atOffset(ZoneOffset.UTC).format(BUILD_TIME_FORMATTER)
+    } else {
+        LocalDateTime.now(ZoneOffset.UTC).format(BUILD_TIME_FORMATTER)
+    }
 }
 
 private fun Project.runCommand(command: String): String {