diff --git a/Modules/XDateUtil/Sources/DateFormat.swift b/Modules/XDateUtil/Sources/DateFormat.swift
index 913e24e7..3fd3a747 100644
--- a/Modules/XDateUtil/Sources/DateFormat.swift
+++ b/Modules/XDateUtil/Sources/DateFormat.swift
@@ -1,8 +1,10 @@
 import Foundation
 
 public enum DateFormat: String {
+    /// yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSS
+    case fullDateWithMilliSecondTime = "yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSS"
     /// yyyy-MM-dd'T'HH:mm:ss
-    case fullDateWithTime = "yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSS"
+    case fullDateWithTime = "yyyy-MM-dd'T'HH:mm:ss"
     /// yyyy-MM-dd
     case fullDate = "yyyy-MM-dd"
     /// yyyy
diff --git a/Modules/XDateUtil/Sources/StringToDate.swift b/Modules/XDateUtil/Sources/StringToDate.swift
index 5f0bfbfb..e25daf89 100644
--- a/Modules/XDateUtil/Sources/StringToDate.swift
+++ b/Modules/XDateUtil/Sources/StringToDate.swift
@@ -4,6 +4,7 @@ public extension String {
     func toDate(format: DateFormat) -> Date {
         XDateFormatter.shared.dateFormat = format.rawValue
         guard let returnDate = XDateFormatter.shared.date(from: self) else {
+            print("toDate Error: Date로 format하려는 데이터의 형식이 DateFormat과 일치하지 않습니다.")
             return Date()
         }
         return returnDate
diff --git a/Services/AuthService/Sources/Data/Local/DataSource/LoaclTokenDataSourceImpl.swift b/Services/AuthService/Sources/Data/Local/DataSource/LoaclTokenDataSourceImpl.swift
index 80d30428..d50a349d 100644
--- a/Services/AuthService/Sources/Data/Local/DataSource/LoaclTokenDataSourceImpl.swift
+++ b/Services/AuthService/Sources/Data/Local/DataSource/LoaclTokenDataSourceImpl.swift
@@ -32,7 +32,7 @@ class LoaclTokenDataSourceImpl: LoaclTokenDataSource {
     }
 
     func fetchExpiredDate() -> Date? {
-        self.keychain.get(.expiredAt)?.toDate(format: .fullDateWithTime)
+        self.keychain.get(.expiredAt)?.toDate(format: .fullDateWithMilliSecondTime)
     }
 
     func resetToken() {