diff --git a/CHANGELOG.md b/CHANGELOG.md
index 554c5cd..57d1643 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- `Get-ElapsedBusinessTime` did not return correct result if `-StartDate` and `-EndDate` were on the same day, but it was a working day, and its time for both dates were outside of working hours
 
 ## [0.2.0] - 2022-04-14
 ### Added
diff --git a/src/Public/Get-ElapsedBusinessTime.ps1 b/src/Public/Get-ElapsedBusinessTime.ps1
index b7adcca..fa7d561 100644
--- a/src/Public/Get-ElapsedBusinessTime.ps1
+++ b/src/Public/Get-ElapsedBusinessTime.ps1
@@ -105,39 +105,46 @@ function Get-ElapsedBusinessTime {
         New-TimeSpan
     }
     elseif ($WorkingDays.Count -eq 1) {
-        if (-not (Test-WorkingDay -Date $StartDate -StartHour $StartHour -FinishHour $FinishHour @CommonParams)) {
-            $StartDate = Get-Date ('{0}/{1}/{2} {3}:{4}:{5}' -f $WorkingDays.Year,
+        $Params = @{
+            StartHour = $StartHour
+            FinishHour = $FinishHour
+        }
+
+        $_StartDate = Get-Date ('{0}/{1}/{2} {3}:{4}:{5}' -f $WorkingDays.Year,
                                                                 $WorkingDays.Month,
                                                                 $WorkingDays.Day,
                                                                 $StartHour.Hour,
                                                                 $StartHour.Minute,
                                                                 $StartHour.Second)
-            $j++
+
+        if ($StartDate -le $_StartDate) {
+            $Params["StartDate"] = $_StartDate
+        }
+        else {
+            $Params["StartDate"] = $StartDate
         }
 
-        if (-not (Test-WorkingDay -Date $EndDate -StartHour $StartHour -FinishHour $FinishHour @CommonParams)) {
-            $EndDate = Get-Date ('{0}/{1}/{2} {3}:{4}:{5}' -f $WorkingDays.Year,
+        $_EndDate = Get-Date ('{0}/{1}/{2} {3}:{4}:{5}' -f $WorkingDays.Year,
                                                               $WorkingDays.Month,
                                                               $WorkingDays.Day,
                                                               $FinishHour.Hour,
                                                               $FinishHour.Minute,
                                                               $FinishHour.Second)
-            $j++
+
+        if ($EndDate -gt $_EndDate) {
+            $Params["EndDate"] = $_EndDate
+        }
+        else {
+            $Params["EndDate"] = $EndDate
         }
 
-        if ($j -eq 2) {
-            # This is if both start and end datetimes are outside of working hours
+        $Result = GetElapsedTime @Params
+
+        if ($Result.Ticks -le 0) {
             New-TimeSpan
         }
         else {
-            $Params = @{
-                StartDate  = $StartDate
-                EndDate    = $EndDate
-                StartHour  = $StartHour
-                FinishHour = $FinishHour
-            }
-    
-            GetElapsedTime @Params
+            $Result
         }
     }
     else {
diff --git a/tests/Public/Get-ElapsedBusinessTime.Tests.ps1 b/tests/Public/Get-ElapsedBusinessTime.Tests.ps1
index db51ef7..500d913 100644
--- a/tests/Public/Get-ElapsedBusinessTime.Tests.ps1
+++ b/tests/Public/Get-ElapsedBusinessTime.Tests.ps1
@@ -30,6 +30,12 @@ Describe "Get-ElapsedBusinessTime" {
             (Get-ElapsedBusinessTime -StartDate $StartDate -EndDate $EndDate).Hours | Should -Be 9
         }
 
+        It "should be 9 hours on the same day" {
+            $StartDate = Get-Date '2022-04-07 07:00:00'
+            $EndDate   = Get-Date '2022-04-07 18:00:00'
+            (Get-ElapsedBusinessTime -StartDate $StartDate -EndDate $EndDate).Hours | Should -Be 9
+        }
+
         It "should be 1 hour, across 2 consecutive days, where both are working days" {
             $StartDate = Get-Date '2022-04-07 16:00:00'
             $EndDate   = Get-Date '2022-04-08 03:00:00'
@@ -170,6 +176,12 @@ Describe "Get-ElapsedBusinessTime" {
             (Get-ElapsedBusinessTime -StartDate $StartDate -EndDate $EndDate).Hours | Should -Be 0
         }
 
+        It "should be 0 hours, across 1 consecutive day, where 1 is a working day" {
+            $StartDate = Get-Date '2022-04-07 18:00:00'
+            $EndDate   = Get-Date '2022-04-07 19:00:00'
+            (Get-ElapsedBusinessTime -StartDate $StartDate -EndDate $EndDate).Hours | Should -Be 0
+        }
+
         It "should be 0 hours, across 4 consecutive days, where 2 are working days" {
             $StartDate = Get-Date '2022-04-08 18:00:00'
             $EndDate   = Get-Date '2022-04-11 03:00:00'