diff --git a/_mobile/date.i18n.cn.js b/_mobile/date.i18n.cn.js
deleted file mode 100644
index 79e294934..000000000
--- a/_mobile/date.i18n.cn.js
+++ /dev/null
@@ -1,67 +0,0 @@
-/**
- * Created by astronaut007 on 2018/8/8
- */
-// 牵扯到国际化这些常量在页面加载后再生效
-// full day names
-BI.Date = BI.Date || {};
-BI.Date._DN = ["星期日",
-    "星期一",
-    "星期二",
-    "星期三",
-    "星期四",
-    "星期五",
-    "星期六",
-    "星期日"];
-
-// short day names
-BI.Date._SDN = ["日",
-    "一",
-    "二",
-    "三",
-    "四",
-    "五",
-    "六",
-    "日"];
-
-// Monday first, etc.
-BI.Date._FD = 1;
-
-// full month namesdat
-BI.Date._MN = [
-    "一月",
-    "二月",
-    "三月",
-    "四月",
-    "五月",
-    "六月",
-    "七月",
-    "八月",
-    "九月",
-    "十月",
-    "十一月",
-    "十二月"];
-
-// short month names
-BI.Date._SMN = [0,
-    1,
-    2,
-    3,
-    4,
-    5,
-    6,
-    7,
-    8,
-    9,
-    10,
-    11];
-
-BI.Date._QN = ["", "第1季度",
-    "第2季度",
-    "第3季度",
-    "第4季度"];
-
-/** Adds the number of days array to the Date object. */
-BI.Date._MD = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
-
-// 实际上无论周几作为一周的第一天，周初周末都是在-6-0间做偏移，用一个数组就可以
-BI.Date._OFFSET = [0, -1, -2, -3, -4, -5, -6];
diff --git a/src/case/calendar/calendar.js b/src/case/calendar/calendar.js
index f5a99e37d..5c5026d8f 100644
--- a/src/case/calendar/calendar.js
+++ b/src/case/calendar/calendar.js
@@ -120,7 +120,7 @@ BI.Calendar = BI.inherit(BI.Widget, {
 
     _getWeekLabel: function () {
         return BI.map(BI.range(0, 7), function (idx, v) {
-            return BI.Date._SDN[(v + BI.StartOfWeek) % 7];
+            return BI.getShortDayName((v + BI.StartOfWeek) % 7);
         });
     },
 
diff --git a/src/core/constant/date.i18n.js b/src/core/constant/date.i18n.js
deleted file mode 100644
index 67f8c93d0..000000000
--- a/src/core/constant/date.i18n.js
+++ /dev/null
@@ -1,66 +0,0 @@
-BI.prepares.push(function () {
-    BI.Date = BI.Date || {};
-    // 牵扯到国际化这些常量在页面加载后再生效
-    // full day names
-    BI.Date._DN = [BI.i18nText("BI-Basic_Sunday"),
-        BI.i18nText("BI-Basic_Monday"),
-        BI.i18nText("BI-Basic_Tuesday"),
-        BI.i18nText("BI-Basic_Wednesday"),
-        BI.i18nText("BI-Basic_Thursday"),
-        BI.i18nText("BI-Basic_Friday"),
-        BI.i18nText("BI-Basic_Saturday"),
-        BI.i18nText("BI-Basic_Sunday")];
-
-    // short day names
-    BI.Date._SDN = [BI.i18nText("BI-Basic_Simple_Sunday"),
-        BI.i18nText("BI-Basic_Simple_Monday"),
-        BI.i18nText("BI-Basic_Simple_Tuesday"),
-        BI.i18nText("BI-Basic_Simple_Wednesday"),
-        BI.i18nText("BI-Basic_Simple_Thursday"),
-        BI.i18nText("BI-Basic_Simple_Friday"),
-        BI.i18nText("BI-Basic_Simple_Saturday"),
-        BI.i18nText("BI-Basic_Simple_Sunday")];
-
-    // Monday first, etc.
-    BI.Date._FD = 1;
-
-    // full month namesdat
-    BI.Date._MN = [
-        BI.i18nText("BI-Basic_January"),
-        BI.i18nText("BI-Basic_February"),
-        BI.i18nText("BI-Basic_March"),
-        BI.i18nText("BI-Basic_April"),
-        BI.i18nText("BI-Basic_May"),
-        BI.i18nText("BI-Basic_June"),
-        BI.i18nText("BI-Basic_July"),
-        BI.i18nText("BI-Basic_August"),
-        BI.i18nText("BI-Basic_September"),
-        BI.i18nText("BI-Basic_October"),
-        BI.i18nText("BI-Basic_November"),
-        BI.i18nText("BI-Basic_December")];
-
-    // short month names
-    BI.Date._SMN = [0,
-        1,
-        2,
-        3,
-        4,
-        5,
-        6,
-        7,
-        8,
-        9,
-        10,
-        11];
-
-    BI.Date._QN = ["", BI.i18nText("BI-Quarter_1"),
-        BI.i18nText("BI-Quarter_2"),
-        BI.i18nText("BI-Quarter_3"),
-        BI.i18nText("BI-Quarter_4")];
-
-    /** Adds the number of days array to the Date object. */
-    BI.Date._MD = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
-
-    // 实际上无论周几作为一周的第一天，周初周末都是在-6-0间做偏移，用一个数组就可以
-    BI.Date._OFFSET = [0, -1, -2, -3, -4, -5, -6];
-});
\ No newline at end of file
diff --git a/src/core/func/alias.js b/src/core/func/alias.js
index e30d88c24..0dca26ca6 100644
--- a/src/core/func/alias.js
+++ b/src/core/func/alias.js
@@ -804,7 +804,7 @@
             var str = jfmt.str, len = jfmt.len, ch = jfmt["char"];
             switch (ch) {
                 case "E": // 星期
-                    str = BI.Date._DN[date.getDay()];
+                    str = BI.getFullDayName(date.getDay());
                     break;
                 case "y": // 年
                     if (len <= 3) {
diff --git a/src/core/func/date.js b/src/core/func/date.js
index 74bf3bea7..d603d235c 100644
--- a/src/core/func/date.js
+++ b/src/core/func/date.js
@@ -6,6 +6,29 @@ BI.Date.HOUR = 60 * BI.Date.MINUTE;
 BI.Date.DAY = 24 * BI.Date.HOUR;
 BI.Date.WEEK = 7 * BI.Date.DAY;
 
+// Monday first, etc.
+BI.Date._FD = 1;
+
+// short month names
+BI.Date._SMN = [0,
+    1,
+    2,
+    3,
+    4,
+    5,
+    6,
+    7,
+    8,
+    9,
+    10,
+    11];
+
+/** Adds the number of days array to the Date object. */
+BI.Date._MD = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
+
+// 实际上无论周几作为一周的第一天，周初周末都是在-6-0间做偏移，用一个数组就可以
+BI.Date._OFFSET = [0, -1, -2, -3, -4, -5, -6];
+
 BI._.extend(BI, {
     /**
      * 获取时区
@@ -136,6 +159,50 @@ BI._.extend(BI, {
         return BI.getOffsetDate(date, BI.Date._OFFSET[w < startOfWeek ? (7 + w - startOfWeek) : (w - startOfWeek)] + 6);
     },
 
+    getFullDayName: function (index) {
+        return [BI.i18nText("BI-Basic_Sunday"),
+            BI.i18nText("BI-Basic_Monday"),
+            BI.i18nText("BI-Basic_Tuesday"),
+            BI.i18nText("BI-Basic_Wednesday"),
+            BI.i18nText("BI-Basic_Thursday"),
+            BI.i18nText("BI-Basic_Friday"),
+            BI.i18nText("BI-Basic_Saturday"),
+            BI.i18nText("BI-Basic_Sunday")][index];
+    },
+
+    getShortDayName: function (index) {
+        return [BI.i18nText("BI-Basic_Simple_Sunday"),
+            BI.i18nText("BI-Basic_Simple_Monday"),
+            BI.i18nText("BI-Basic_Simple_Tuesday"),
+            BI.i18nText("BI-Basic_Simple_Wednesday"),
+            BI.i18nText("BI-Basic_Simple_Thursday"),
+            BI.i18nText("BI-Basic_Simple_Friday"),
+            BI.i18nText("BI-Basic_Simple_Saturday"),
+            BI.i18nText("BI-Basic_Simple_Sunday")][index];
+    },
+
+    getMonthName: function (index) {
+        return [BI.i18nText("BI-Basic_January"),
+            BI.i18nText("BI-Basic_February"),
+            BI.i18nText("BI-Basic_March"),
+            BI.i18nText("BI-Basic_April"),
+            BI.i18nText("BI-Basic_May"),
+            BI.i18nText("BI-Basic_June"),
+            BI.i18nText("BI-Basic_July"),
+            BI.i18nText("BI-Basic_August"),
+            BI.i18nText("BI-Basic_September"),
+            BI.i18nText("BI-Basic_October"),
+            BI.i18nText("BI-Basic_November"),
+            BI.i18nText("BI-Basic_December")][index]
+    },
+
+    getQuarterName: function (index) {
+        return ["", BI.i18nText("BI-Quarter_1"),
+            BI.i18nText("BI-Quarter_2"),
+            BI.i18nText("BI-Quarter_3"),
+            BI.i18nText("BI-Quarter_4")][index];
+    },
+
     // 格式化打印日期
     print: function (date, str) {
         var m = date.getMonth();
@@ -158,10 +225,10 @@ BI._.extend(BI, {
         }
         var min = date.getMinutes();
         var sec = date.getSeconds();
-        s["%a"] = BI.Date._SDN[w]; // abbreviated weekday name [FIXME: I18N]
-        s["%A"] = BI.Date._DN[w]; // full weekday name
+        s["%a"] = BI.getShortDayName(w); // abbreviated weekday name [FIXME: I18N]
+        s["%A"] = BI.getFullDayName(w); // full weekday name
         s["%b"] = BI.Date._SMN[m]; // abbreviated month name [FIXME: I18N]
-        s["%B"] = BI.Date._MN[m]; // full month name
+        s["%B"] = BI.getMonthName(m); // full month name
         // FIXME: %c : preferred date and time representation for the current locale
         s["%C"] = 1 + Math.floor(y / 100); // the century number
         s["%d"] = (d < 10) ? ("0" + d) : d; // the day of the month (range 01 to 31)
diff --git a/src/widget/yearquarter/card.static.yearquarter.js b/src/widget/yearquarter/card.static.yearquarter.js
index 78cdb518c..cf54c6fcf 100644
--- a/src/widget/yearquarter/card.static.yearquarter.js
+++ b/src/widget/yearquarter/card.static.yearquarter.js
@@ -8,16 +8,16 @@ BI.StaticYearQuarterCard = BI.inherit(BI.Widget, {
     _createQuarter: function () {
         var self = this;
         var items = [{
-            text: BI.Date._QN[1],
+            text: BI.getQuarterName(1),
             value: 1
         }, {
-            text: BI.Date._QN[2],
+            text: BI.getQuarterName(2),
             value: 2
         }, {
-            text: BI.Date._QN[3],
+            text: BI.getQuarterName(3),
             value: 3
         }, {
-            text: BI.Date._QN[4],
+            text: BI.getQuarterName(4),
             value: 4
         }];
         return BI.map(items, function (j, item) {