environment: store legacy urls timestamp as a strftime output (#63621)

hobo/environment/models.py

@@ -19,7 +19,6 @@ import json
 import random
 import re
 import socket
-import time
 import urllib.parse
 
 import requests
@@ -294,10 +293,9 @@ class ServiceBase(models.Model):
 
     def change_base_url(self, base_url):
         service_dict = self.as_dict()
-        timestamp = datetime.datetime.now()
         legacy_urls = {
             'base_url': service_dict['base_url'],
-            'timestamp': str(time.mktime(timestamp.timetuple()) + timestamp.microsecond / 1e6),
+            'timestamp': datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'),
         }
         for url_key in (
             'saml-sp-metadata-url',