Fix inconsistency due to rounding in CachedResponse.expires_unix prop…

…erty

HISTORY.md

@@ -1,9 +1,10 @@
 # History
 
-## 1.2.1 (2024-02-xx)
+## Unreleased
 
 🪲 **Bugfixes:**
 * Fix `normalize_headers` not accepting header values in bytes
+* Fix inconsistency due to rounding in `CachedResponse.expires_unix` property
 
 ## 1.2.0 (2024-02-17)
 

requests_cache/models/response.py

@@ -2,7 +2,6 @@
 
 from datetime import datetime, timedelta
 from logging import getLogger
-from time import time
 from typing import TYPE_CHECKING, Dict, List, Optional, Union
 
 import attr
@@ -144,8 +143,9 @@ def expires_delta(self) -> Optional[int]:
     @property
     def expires_unix(self) -> Optional[int]:
         """Get expiration time as a Unix timestamp"""
-        seconds = self.expires_delta
-        return round(time() + seconds) if seconds is not None else None
+        if self.expires is None:
+            return None
+        return round(self.expires.timestamp())
 
     @property
     def from_cache(self) -> bool: