Add time zone suppprt

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>io.github.gk0wk</groupId>
     <artifactId>MCron</artifactId>
-    <version>1.0.0</version>
+    <version>1.0.1</version>
     <packaging>jar</packaging>
 
     <name>MCron</name>

src/main/java/io/github/gk0wk/mcron/CronExpression.java

@@ -41,7 +41,7 @@ public class CronExpression {
         put("sun", 7); put("sunday",    7); put("0", 7); put("7", 7);
     }};
 
-    private static ZoneOffset localTimezoneOffset = ZoneOffset.of("+8");
+    private static ZoneOffset localTimezoneOffset = ZoneOffset.of("Z");
 
     private final int[] secondList;
     private final int[] minuteList;
@@ -627,7 +627,7 @@ private <T> void atomicListAdd(List<T> list, T object) {
      * 重新设置时区
      * @param offsetId 时区ID
      */
-    public void setTimeZoneOffset(String offsetId) {
+    public static void setTimeZoneOffset(String offsetId) {
         localTimezoneOffset = ZoneOffset.of(offsetId);
     }
 

src/main/java/io/github/gk0wk/mcron/CronManager.java

@@ -35,11 +35,16 @@ public CronManager() {
 
     protected void reload() {
         try {
+            // 清空
             this.tasks.clear();
             this.cacheInTimeTasks.clear();
             this.inTimeTasks.clear();
             this.outdatedTasks.clear();
 
+            // 设置时区
+            CronExpression.setTimeZoneOffset(MCron.getInstance().configManager.get("config.yml").getNode("timezone-offset").getString("Z"));
+
+            // 重载
             MCron.getInstance().configManager.get("config.yml").getNode("schedule-tasks").getChildrenMap().forEach((key, value) -> {
                 if (key instanceof String) {
                     List<String> commands = ConfigUtil.setListIfNull(value).getList(Object::toString);

src/main/resources/config.yml

@@ -1,4 +1,17 @@
 version: ${project.version}
+# GMT time zone offset, supported format:
+# Z - for UTC
+# +h
+# +hh
+# +hh:mm
+# -hh:mm
+# +hhmm
+# -hhmm
+# +hh:mm:ss
+# -hh:mm:ss
+# +hhmmss
+# -hhmmss
+timezone-offset: '+8'
 on-server-ready: []
 # Example:
 #  - 'broadcast §aServer is ready, enjoy your day!'