diff --git a/utils.js b/utils.js
index 806077a..f98385c 100644
--- a/utils.js
+++ b/utils.js
@@ -73,6 +73,11 @@ function getUtcTime() {
   return Math.floor((new Date()).getTime() / 1000);
 }
 
+function getDaySeconds(time, timeZone) {
+  return Math.floor((time + 3600 * timeZone) / 3600 / 24) * 3600 * 24 -
+    3600 * timeZone;
+}
+
 function formatDate(date) {
   const year = date.getFullYear();
   const month = date.getMonth() + 1;//月份是从0开始的
@@ -251,6 +256,7 @@ exports.throwError = throwError;
 exports.isOnlineEnv = isOnlineEnv;
 exports.getTickCount = getTickCount;
 exports.getUtcTime = getUtcTime;
+exports.getDaySeconds = getDaySeconds;
 exports.formatDate = formatDate;
 exports.pad = pad;
 exports.randRange = randRange;