diff --git a/plugins/woocommerce-admin/changelogs/fix-7748-analytics-crashing-daylight-saving b/plugins/woocommerce-admin/changelogs/fix-7748-analytics-crashing-daylight-saving
new file mode 100644
index 00000000000..b59381ddef4
--- /dev/null
+++ b/plugins/woocommerce-admin/changelogs/fix-7748-analytics-crashing-daylight-saving
@@ -0,0 +1,4 @@
+Significance: patch
+Type: Fix
+
+Fix analytics crashing on daylight saving #7763
diff --git a/plugins/woocommerce-admin/src/API/Reports/TimeInterval.php b/plugins/woocommerce-admin/src/API/Reports/TimeInterval.php
index ffd85fd061b..fb044b5f2e4 100644
--- a/plugins/woocommerce-admin/src/API/Reports/TimeInterval.php
+++ b/plugins/woocommerce-admin/src/API/Reports/TimeInterval.php
@@ -302,24 +302,18 @@ class TimeInterval {
 	 * @return DateTime
 	 */
 	public static function next_day_start( $datetime, $reversed = false ) {
-		$seconds_into_day = (int) $datetime->format( 'H' ) * HOUR_IN_SECONDS + (int) $datetime->format( 'i' ) * MINUTE_IN_SECONDS + (int) $datetime->format( 's' );
+		$oneday       = new \DateInterval( 'P1D' );
+		$new_datetime = clone $datetime;
 
-		// The day boundary is actually next midnight when going in reverse, so set it to day -1 at 23:59:59.
 		if ( $reversed ) {
-			$timestamp          = (int) $datetime->format( 'U' );
-			$next_day_timestamp = $timestamp - ( $seconds_into_day + 1 );
+			$new_datetime->sub( $oneday );
+			$new_datetime->setTime( 23, 59, 59 );
 		} else {
-			$day_increment = new \DateInterval( 'P1D' ); // Plus 1 Day.
-			$next_datetime = clone $datetime;
-			$next_datetime->add( $day_increment );
-			$timestamp          = (int) $next_datetime->format( 'U' );
-			$next_day_timestamp = $timestamp - $seconds_into_day;
+			$new_datetime->add( $oneday );
+			$new_datetime->setTime( 0, 0, 0 );
 		}
 
-		$next_day = new \DateTime();
-		$next_day->setTimestamp( $next_day_timestamp );
-		$next_day->setTimezone( new \DateTimeZone( wc_timezone_string() ) );
-		return $next_day;
+		return $new_datetime;
 	}
 
 	/**
@@ -332,8 +326,12 @@ class TimeInterval {
 	public static function next_week_start( $datetime, $reversed = false ) {
 		$first_day_of_week = absint( get_option( 'start_of_week' ) );
 		$initial_week_no   = self::week_number( $datetime, $first_day_of_week );
+		$failsafe_count    = 0;
 
 		do {
+			if ( $failsafe_count++ >= 7 ) {
+				break;
+			}
 			$datetime        = self::next_day_start( $datetime, $reversed );
 			$current_week_no = self::week_number( $datetime, $first_day_of_week );
 		} while ( $current_week_no === $initial_week_no );
diff --git a/plugins/woocommerce-admin/tests/api/reports-interval.php b/plugins/woocommerce-admin/tests/api/reports-interval.php
index 65c0b751daf..f59d02eef2a 100644
--- a/plugins/woocommerce-admin/tests/api/reports-interval.php
+++ b/plugins/woocommerce-admin/tests/api/reports-interval.php
@@ -670,6 +670,40 @@ class WC_Tests_Reports_Interval_Stats extends WC_Unit_Test_Case {
 		}
 	}
 
+	/**
+	 * Test function that returns beginning of next day with daylight saving. Auckland's 2021 daylight saving
+	 * starts on 26th September 2021 at 02:00:00 and ends on 3rd April 2022 at 03:00:00.
+	 */
+	public function test_next_day_start_daylight_saving() {
+		update_option( 'timezone_string', 'Pacific/Auckland' );
+		$settings = array(
+			'2021-09-26T00:00:00' => array( // Before daylight saving starts.
+				0 => '2021-09-27T00:00:00',
+				1 => '2021-09-25T23:59:59',
+			),
+			'2021-09-26T03:00:00' => array( // After daylight saving starts.
+				0 => '2021-09-27T00:00:00',
+				1 => '2021-09-25T23:59:59',
+			),
+			'2022-04-03T00:00:00' => array( // Before daylight saving ends.
+				0 => '2022-04-04T00:00:00',
+				1 => '2022-04-02T23:59:59',
+			),
+			'2022-04-03T23:59:00' => array( // After daylight saving ends.
+				0 => '2022-04-04T00:00:00',
+				1 => '2022-04-02T23:59:59',
+			),
+		);
+
+		foreach ( $settings as $datetime_s => $setting ) {
+			$datetime = new DateTime( $datetime_s, new DateTimeZone( 'Pacific/Auckland' ) );
+			foreach ( $setting as $reversed => $exp_value ) {
+				$result_dt = TimeInterval::next_day_start( $datetime, $reversed );
+				$this->assertEquals( $exp_value, $result_dt->format( TimeInterval::$iso_datetime_format ), __FUNCTION__ . ": DT: $datetime_s; R: $reversed" );
+			}
+		}
+	}
+
 	/**
 	 * Test function that returns beginning of next week, for weeks starting on Monday.
 	 */