diff --git a/src/main/resources/lang/ja-JP/strings.yml b/src/main/resources/lang/ja-JP/strings.yml
index ebfa5c64f..60677be69 100644
--- a/src/main/resources/lang/ja-JP/strings.yml
+++ b/src/main/resources/lang/ja-JP/strings.yml
@@ -60,19 +60,18 @@ questEditorDelete: "クエストを削除します"
 questEditorName: "名前を設定"
 questEditorAskMessage: "開始時のメッセージ"
 questEditorFinishMessage: "完了時のメッセージ"
-questEditorRedoDelay: "Set redo delay"
 questEditorNPCStart: "NPCの設定を開始"
 questEditorBlockStart: "ブロックの設定を開始"
 questEditorInitialEvent: "Set initial Event"
 questEditorSetGUI: "GUI Itemの設定を表示"
 questEditorReqs: "編集する条件"
+questEditorPln: "Edit Planner"
 questEditorStages: "編集段階"
 questEditorRews: "報酬を編集"
 questEditorEnterQuestName: "クエスト名を入力してください(<cancel>)"
 questEditorEditEnterQuestName: "クエスト名を入力してください(<cancel>)"
 questEditorEnterAskMessage: "尋ねるメッセージを入力してください(<cancel>)"
 questEditorEnterFinishMessage: "終了メッセージを入力してください(<cancel>)"
-questEditorEnterRedoDelay: "時間の長さを入力してください(単位: 秒)、0を入力すると遅延をクリアします、キャンセルする場合は-1を入力"
 questEditorEnterNPCStart: "NPCのIDを入力してください、-1と入力するとNPCの開始をクリア、-2を入力するとキャンセルします"
 questEditorEnterBlockStart: "Right-click on a block to use as a start point, <done>, <clear>, <cancel>"
 questEditorEnterInitialEvent: "イベント名を入力してください、<clear>、<cancel>"
@@ -514,6 +513,14 @@ reqMustAddItem: "You must add at least one item first!"
 reqNoMessage: "You must set a fail requirements message!"
 reqNoMcMMO: "mcMMO not installed"
 reqNoHeroes: "Heroes not installed"
+plnStart: "Set start date"
+plnEnd: "Set end date"
+plnRepeat: "Set repeat cycle"
+plnCooldown: "Set player cooldown"
+plnStartPrompt: "Enter amount of time (in seconds), 0 to clear the start date or -1 to cancel"
+plnEndPrompt: "Enter amount of time (in seconds), 0 to clear the end date or -1 to cancel"
+plnRepeatPrompt: "Enter amount of time (in seconds), 0 to clear the repeat or -1 to cancel"
+plnCooldownPrompt: "Enter amount of time (in seconds), 0 to clear the cooldown or -1 to cancel"
 rewSetMoney: "Set money reward"
 rewSetQuestPoints: "Set Quest Points reward"
 rewSetItems: "Set item rewards"
@@ -580,6 +587,21 @@ itemCreateInvalidInput: "Invalid input!"
 itemCreateNotNumber: "Input was not a number!"
 itemCreateNoNameAmount: "You must set a name and amount first!"
 itemCreateCriticalError: "A critical error has occurred."
+dateCreateEnterDay: "Enter a day (max. 31), <cancel>"
+dateCreateInvalidDay: "Day must be between 1 and 31!"
+dateCreateEnterMonth: "Enter a month (max. 12), <cancel>"
+dateCreateInvalidMonth: "Day must be between 1 and 12!"
+dateCreateEnterYear: "Enter a year (max. 9999), <cancel>"
+dateCreateInvalidYear: "Year must be between 1000 and 9999!"
+dateCreateEnterHour: "Enter an hour (max. 23), <cancel>"
+dateCreateInvalidHour: "Hour must be between 0 and 23!"
+dateCreateEnterMinute: "Enter a minute (max. 59), <cancel>"
+dateCreateInvalidMinute: "Minute must be between 0 and 59!"
+dateCreateEnterSecond: "Enter a second (max. 59), <cancel>"
+dateCreateInvalidSecond: "Second must be between 0 and 59!"
+dateCreateEnterZone: "Enter a UTC time zone (max. 14), <cancel>"
+dateCreateInvalidZone: "Zone must be between -12 and 14!"
+dateCreateNoYearAmount: "You must set a year first!"
 questTitle: "-- <quest> --"
 questObjectivesTitle: "---(<quest>)---"
 questCompleteTitle: '**クエスト完了: <quest>**'
@@ -604,6 +626,7 @@ questEditTitle: "- クエストを編集します -"
 questDeleteTitle: "- 削除クエスト -"
 requirementsTitle: "- <quest> | 受託条件 -"
 rewardsTitle: "- <quest> | Rewards -"
+plannerTitle: "- <quest> | Planner -"
 itemRequirementsTitle: "- Item Requirements -"
 itemRewardsTitle: "- Item Rewards -"
 mcMMORequirementsTitle: "- mcMMO Requirements -"
@@ -622,6 +645,7 @@ eventTitle: "- Event -"
 completedQuestsTitle: "- Completed Quests -"
 topQuestersTitle: "- Top <number> Questers -"
 createItemTitle: "- Create Item -"
+dateTimeTitle: "- Date & Time -"
 enchantmentsTitle: "- Enchantments -"
 questGUITitle: "- GUI Item Display -"
 questRegionTitle: "- Quest Region -"
@@ -797,8 +821,13 @@ COLOR_RED: "赤色"
 COLOR_SILVER: "薄灰色"
 COLOR_WHITE: "白色"
 COLOR_YELLOW: "黄色"
+timeZone: "Time zone"
 timeDay: "日"
 timeDays: "日"
+timeMonth: "Month"
+timeMonths: "Months"
+timeYear: "Year"
+timeYears: "Years"
 timeHour: "時間"
 timeHours: "時間"
 timeMinute: "分"