We should be able to set the timezone in our config file.

cmd/headscale/cli/utils.go

@@ -71,10 +71,28 @@ func LoadConfig(path string) error {
 	viper.SetDefault("oidc.scope", []string{oidc.ScopeOpenID, "profile", "email"})
 	viper.SetDefault("oidc.strip_email_domain", true)
 
+	viper.SetDefault("TZ", "UTC")
+	if tz := os.Getenv("TZ"); tz != "" {
+		_, err := time.LoadLocation(tz)
+		if err == nil {
+			viper.SetDefault("TZ", tz)
+		}
+	}
+
 	if err := viper.ReadInConfig(); err != nil {
 		return fmt.Errorf("fatal error reading config file: %w", err)
 	}
 
+	if viper.GetString("time_zone") != "" {
+		_, err := time.LoadLocation(viper.GetString("time_zone"))
+		if err == nil {
+			viper.SetDefault("TZ", viper.GetString("time_zone"))
+		} else {
+			log.Warn().
+				Msg("Warning: invalid timzone, fallingback to UTC")
+		}
+	}
+
 	// Collect any validation errors and return them all at once
 	var errorText string
 	if (viper.GetString("tls_letsencrypt_hostname") != "") &&

cmd/headscale/headscale.go

@@ -37,14 +37,6 @@ func main() {
 		colors = false
 	}
 
-	viper.SetDefault("TZ", "UTC")
-	if tz := os.Getenv("TZ"); tz != "" {
-		_, err := time.LoadLocation(tz)
-		if err == nil {
-			viper.SetDefault("TZ", tz)
-		}
-	}
-
 	zerolog.TimestampFunc = headscale.NowFromTZEnv
 
 	log.Logger = log.Output(zerolog.ConsoleWriter{

config-example.yaml

@@ -16,6 +16,14 @@ server_url: http://127.0.0.1:8080
 #
 listen_addr: 0.0.0.0:8080
 
+
+# Headscale uses UTC as it's default time zone
+# you can override this by setting the TZ env
+# variable. Additionally you can set your time
+# zone here.
+
+time_zone: UTC
+
 # Address to listen to /metrics, you may want
 # to keep this endpoint private to your internal
 # network