diff --git a/shared/domain/activityField/signInField.ts b/shared/domain/activityField/signInField.ts
index 51999ed40..a24c02962 100644
--- a/shared/domain/activityField/signInField.ts
+++ b/shared/domain/activityField/signInField.ts
@@ -1,5 +1,5 @@
 import moment = require('moment');
-import { ACTIVITY_TYPE, SERVER_OPEN_TIME, SIGNIN_CLOSE, SIGNIN_OPEN } from '../../consts';
+import { ACTIVITY_TYPE, REFRESH_TIME, SERVER_OPEN_TIME, SIGNIN_CLOSE, SIGNIN_OPEN } from '../../consts';
 import { ActivityModelType } from '../../db/Activity';
 import { ActivitySignInModelType } from '../../db/ActivitySignIn';
 import { deltaDays } from '../../pubUtils/util';
@@ -63,7 +63,8 @@ export class SignInData extends ActivityBase {
         this.beginTime = moment(beginTime).valueOf();
         this.endTime = moment(endTime).valueOf();
         this.roundIndex = 1;
-        this.todayIndex = deltaDays(moment(beginTime).startOf('d').toDate(), new Date) + 1;
+        let date = new Date();
+        this.todayIndex = Math.ceil((moment(date).valueOf() - this.beginTime) / 24 * 60 * 60 * 1000);
     }
 
     public initData(data: string) {
@@ -76,13 +77,13 @@ export class SignInData extends ActivityBase {
         this.endDate = dataObj.endDate ? dataObj.endDate : SIGNIN_CLOSE;
 
         let date = new Date();
-        this.beginTime = moment(date.setDate(this.startDate)).startOf('day').valueOf();
-        this.endTime = moment(date.setDate(this.endDate)).endOf('day').valueOf();
+        this.beginTime = moment(date.setDate(this.startDate)).startOf('day').add(REFRESH_TIME, 'h').valueOf();
+        this.endTime = moment(date.setDate(this.endDate)).endOf('day').add(REFRESH_TIME, 'h').valueOf();
         this.roundIndex = moment().diff(moment(SERVER_OPEN_TIME).startOf('months'), 'months') + 1;
         if (this.type === ACTIVITY_TYPE.NEW_PLAYER_SIGN_IN) {
             this.roundIndex = 1;
         }
-        this.todayIndex = moment(Date.now()).date() - this.startDate + 1;
+        this.todayIndex = Math.ceil((moment(date).valueOf() - this.beginTime) / 24 * 60 * 60 * 1000);
 
         let arr = dataObj.data
         for (let obj of arr) {