diff --git a/SwedbankPaySDK/Classes/Api/Helpers/TimeZone+OffsetFromGMT.swift b/SwedbankPaySDK/Classes/Api/Helpers/TimeZone+OffsetFromGMT.swift
index 254de26..4d9f6814 100644
--- a/SwedbankPaySDK/Classes/Api/Helpers/TimeZone+OffsetFromGMT.swift
+++ b/SwedbankPaySDK/Classes/Api/Helpers/TimeZone+OffsetFromGMT.swift
@@ -22,4 +22,9 @@ extension TimeZone {
         localTimeZoneFormatter.dateFormat = "Z"
         return localTimeZoneFormatter.string(from: Date())
     }
+
+    func minutesFromGMT() -> String {
+        let minutes = (secondsFromGMT() / 60)
+        return String(minutes)
+    }
 }
diff --git a/SwedbankPaySDK/Classes/Api/SwedbankPayAPIEnpointRouter.swift b/SwedbankPaySDK/Classes/Api/SwedbankPayAPIEnpointRouter.swift
index 093216e..d422c0d 100644
--- a/SwedbankPaySDK/Classes/Api/SwedbankPayAPIEnpointRouter.swift
+++ b/SwedbankPaySDK/Classes/Api/SwedbankPayAPIEnpointRouter.swift
@@ -81,7 +81,7 @@ struct SwedbankPayAPIEnpointRouter: EndpointRouterProtocol {
                                "screenColorDepth": String(24)],
                     "browser": ["acceptHeader": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
                                 "languageHeader": Locale.current.identifier.replacingOccurrences(of: "_", with: "-"),
-                                "timeZoneOffset": TimeZone.current.offsetFromGMT(),
+                                "timeZoneOffset": TimeZone.current.minutesFromGMT(),
                                 "javascriptEnabled": true],
                     "service": ["name": "SwedbankPaySDK-iOS",
                                 "version": SwedbankPaySDK.VersionReporter.currentVersion]
@@ -97,7 +97,7 @@ struct SwedbankPayAPIEnpointRouter: EndpointRouterProtocol {
                                "screenColorDepth": String(24)],
                     "browser": ["acceptHeader": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
                                 "languageHeader": Locale.current.identifier.replacingOccurrences(of: "_", with: "-"),
-                                "timeZoneOffset": TimeZone.current.offsetFromGMT(),
+                                "timeZoneOffset": TimeZone.current.minutesFromGMT(),
                                 "javascriptEnabled": true]
             ]
         case .completeAuthentication(let cRes):