Improve timestamp handling and event navigation

deploy/docker-compose.yml

@@ -5,6 +5,7 @@ services:
       POSTGRES_USER: monlet
       POSTGRES_PASSWORD: monlet
       POSTGRES_DB: monlet
+      TZ: UTC
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U monlet -d monlet"]
       interval: 5s
@@ -27,7 +28,9 @@ services:
       MONLET_LOG_LEVEL: ${MONLET_LOG_LEVEL:-INFO}
       MONLET_ENABLE_DETECTOR: "true"
       MONLET_ENABLE_NOTIFIER_WORKER: "true"
+      MONLET_NOTIFICATION_TIME_ZONE: ${MONLET_NOTIFICATION_TIME_ZONE:-UTC}
       MONLET_NOTIFIER_DEBUG_ENABLED: "true"
+      TZ: UTC
     command:
       - sh
       - -c
@@ -49,6 +52,8 @@ services:
     environment:
       MONLET_API_BASE_URL: http://server:8000
       MONLET_API_TOKEN: ${MONLET_AUTH_TOKEN:?MONLET_AUTH_TOKEN is required}
+      MONLET_WEB_TIME_ZONE: ${MONLET_WEB_TIME_ZONE:-UTC}
+      TZ: ${MONLET_WEB_TIME_ZONE:-UTC}
     ports:
       - "3000:3000"