diff --git a/config/config.example.json b/config/config.example.json
index 77a8c0683..001d42939 100644
--- a/config/config.example.json
+++ b/config/config.example.json
@@ -2,6 +2,7 @@
   "agents": {
     "defaults": {
       "workspace": "~/.picoclaw/workspace",
+      "timezone": "Asia/Makassar",
       "restrict_to_workspace": true,
       "model": "gpt4",
       "max_tokens": 8192,
@@ -246,4 +247,4 @@
     "host": "0.0.0.0",
     "port": 18790
   }
-}
+}
\ No newline at end of file
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 036021e49..f08ea2747 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -6,6 +6,7 @@ import (
 	"os"
 	"path/filepath"
 	"sync/atomic"
+	"time"
 
 	"github.com/caarlos0/env/v11"
 )
@@ -167,6 +168,7 @@ type SessionConfig struct {
 }
 
 type AgentDefaults struct {
+	Timezone            string   `json:"timezone,omitempty"              env:"PICOCLAW_AGENTS_DEFAULTS_TIMEZONE"`
 	Workspace           string   `json:"workspace"                       env:"PICOCLAW_AGENTS_DEFAULTS_WORKSPACE"`
 	RestrictToWorkspace bool     `json:"restrict_to_workspace"           env:"PICOCLAW_AGENTS_DEFAULTS_RESTRICT_TO_WORKSPACE"`
 	Provider            string   `json:"provider"                        env:"PICOCLAW_AGENTS_DEFAULTS_PROVIDER"`
@@ -515,6 +517,15 @@ func LoadConfig(path string) (*Config, error) {
 		return nil, err
 	}
 
+	// Apply timezone from config — overrides process-wide default
+	if tz := cfg.Agents.Defaults.Timezone; tz != "" {
+		loc, err := time.LoadLocation(tz)
+		if err != nil {
+			return nil, fmt.Errorf("invalid timezone %q: %w", tz, err)
+		}
+		time.Local = loc
+	}
+
 	return cfg, nil
 }