diff --git a/src/assets/data/adminConstants.js b/src/assets/data/adminConstants.js
index 6086a14..fe9cc86 100644
--- a/src/assets/data/adminConstants.js
+++ b/src/assets/data/adminConstants.js
@@ -4,5 +4,7 @@ const INITIAL_PAGE_LIMIT = 10;
 export const TYPE_REGISTRY = 'regist';
 export const TYPE_MODIFY = 'modify';
 export const NONE = 'NONE';
+export const ONE_MINUTE_MS = 60000;
+export const AUCTION_MIN_MINUTE_TIME = 15;	// 15분
 
 export { INITIAL_PAGE_SIZE, INITIAL_CURRENT_PAGE, INITIAL_PAGE_LIMIT };
diff --git a/src/components/ServiceManage/modal/LandAuctionModal.js b/src/components/ServiceManage/modal/LandAuctionModal.js
index 45b83df..c39c545 100644
--- a/src/components/ServiceManage/modal/LandAuctionModal.js
+++ b/src/components/ServiceManage/modal/LandAuctionModal.js
@@ -23,10 +23,16 @@ import {
 import { modalTypes } from '../../../assets/data';
 import {DynamicModal, Modal, DateTimeRangePicker} from '../../common';
 import { LandAuctionModify, LandAuctionSingleRegist } from '../../../apis';
-import { TYPE_MODIFY, TYPE_REGISTRY } from '../../../assets/data/adminConstants';
+import {
+	AUCTION_MIN_MINUTE_TIME,
+	ONE_MINUTE,
+	ONE_MINUTE_MS,
+	TYPE_MODIFY,
+	TYPE_REGISTRY,
+} from '../../../assets/data/adminConstants';
 import { landAuctionStatus, landAuctionStatusType, languageType, CurrencyType } from '../../../assets/data';
 import { useModal } from '../../../utils/hook';
-import { convertKTCDate } from '../../../utils';
+import { convertKTCDate, msToMinutes } from '../../../utils';
 
 const LandAuctionModal = ({ modalType, detailView, handleDetailView, content, setDetailData, landData, buildingData }) => {
 	const { t } = useTranslation();
@@ -190,7 +196,7 @@ const LandAuctionModal = ({ modalType, detailView, handleDetailView, content, se
 					return;
 				}
 				const diffAuctionTime = resultData.auction_end_dt - resultData.auction_start_dt;
-				if((diffAuctionTime / 60000) < 15){
+				if(msToMinutes(diffAuctionTime) < AUCTION_MIN_MINUTE_TIME){
 					setAlertMsg(t('LAND_AUCTION_MODEL_MIN_TIME_WARNING'))
 					return;
 				}
diff --git a/src/utils/common.js b/src/utils/common.js
index 2ee3ff5..81d0893 100644
--- a/src/utils/common.js
+++ b/src/utils/common.js
@@ -1,3 +1,5 @@
+import { ONE_MINUTE_MS } from '../assets/data/adminConstants';
+
 export const convertKTC = (dt, nation = true) => {
 	if (!dt) return "";
 	if (typeof dt !== "string") return "";
@@ -53,4 +55,8 @@ export const truncateText = (text) => {
 		return text.substring(0, maxLength) + '...';
 	}
 	return text;
-};
\ No newline at end of file
+};
+
+export const msToMinutes = (ms) => {
+	return ms / ONE_MINUTE_MS;
+}
\ No newline at end of file