diff --git a/Nudge/Utilities/Utils.swift b/Nudge/Utilities/Utils.swift
index 66229c76..9bfd318d 100644
--- a/Nudge/Utilities/Utils.swift
+++ b/Nudge/Utilities/Utils.swift
@@ -396,7 +396,7 @@ struct ConfigurationManager {
 }
 
 struct DateManager {
-    private let dateFormatterISO8601: DateFormatter = {
+    let dateFormatterISO8601: DateFormatter = {
         let formatter = DateFormatter()
         formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss'Z'"
         formatter.locale = Locale(identifier: "en_US_POSIX")
diff --git a/NudgeTests/NudgeTests.swift b/NudgeTests/NudgeTests.swift
index 57e3c508..5b437a7f 100644
--- a/NudgeTests/NudgeTests.swift
+++ b/NudgeTests/NudgeTests.swift
@@ -14,10 +14,7 @@ var defaultPreferencesForTests = [:] as [String : Any]
 
 class NudgeTests: XCTestCase {
     func coerceStringToDate(dateString: String) -> Date {
-        let dateFormatter = DateFormatter()
-        dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss'Z'"
-        let formattedDate = dateFormatter.date(from: dateString) ?? DateManager().getCurrentDate()
-        return formattedDate
+        DateManager().dateFormatterISO8601.date(from: dateString) ?? DateManager().getCurrentDate()
     }
 
     override func setUp() {
@@ -89,7 +86,7 @@ class NudgeTests: XCTestCase {
         defaultPreferencesForTests["requiredMinimumOSVersion"] = "99.99.99"
         PrefsWrapper.prefsOverride = defaultPreferencesForTests
         XCTAssertEqual(
-            coerceStringToDate(dateString: "2022-01-03T00:00:00Z"),
+            coerceStringToDate(dateString: "2022-01-02T00:30:00Z"),
             AppStateManager().gracePeriodLogic(
                 currentDate: coerceStringToDate(dateString: "2022-01-02T00:30:00Z"),
                 testFileDate: coerceStringToDate(dateString: "2022-01-02T00:00:00Z")