diff --git a/submodules/BuildConfig/Sources/BuildConfig.m b/submodules/BuildConfig/Sources/BuildConfig.m
index 37a9398b37..a4a4cffa9e 100644
--- a/submodules/BuildConfig/Sources/BuildConfig.m
+++ b/submodules/BuildConfig/Sources/BuildConfig.m
@@ -146,7 +146,7 @@ API_AVAILABLE(ios(10))
         dataDict[@"device_token"] = [appToken base64EncodedStringWithOptions:0];
         dataDict[@"device_token_type"] = @"voip";
     }
-    float tzOffset = ([[NSTimeZone systemTimeZone] secondsFromGMT] / 3600.0);
+    float tzOffset = [[NSTimeZone systemTimeZone] secondsFromGMT];
     dataDict[@"tz_offset"] = @((int)tzOffset);
     if (signatureDict != nil) {
         for (id<NSCopying> key in signatureDict.allKeys) {