diff --git a/cert/cert.py b/cert/cert.py
index a7c646540..43e95741d 100644
--- a/cert/cert.py
+++ b/cert/cert.py
@@ -42,8 +42,8 @@ def printData(data, showPub = True):
     name = re.sub('[^a-zA-Z0-9_]', '_', cn)
     print('// CN: {} => name: {}'.format(cn, name))
 
-    print('// not valid before:', xcert.not_valid_before)
-    print('// not valid after: ', xcert.not_valid_after)
+    print('// not valid before:', xcert.not_valid_before_utc)
+    print('// not valid after: ', xcert.not_valid_after_utc)
 
     if showPub:
 
diff --git a/platformio/include/cert.h b/platformio/include/cert.h
index 5c8717e50..606b1df36 100644
--- a/platformio/include/cert.h
+++ b/platformio/include/cert.h
@@ -1,6 +1,6 @@
 // this file is autogenerated - any modification will be overwritten
 // unused symbols will not be linked in the final binary
-// generated on 2023-12-17 00:18:32
+// generated on 2024-05-08 22:04:27
 // by 'cert.py -s api.openweathermap.org -p 443 -n openweathermap'
 
 // alternatively, the certificate chain can be extracted using openssl
@@ -13,8 +13,8 @@
 // certificate chain for api.openweathermap.org:443
 
 // CN: *.openweathermap.org => name: __openweathermap_org
-// not valid before: 2023-06-30 00:00:00
-// not valid after:  2024-07-30 23:59:59
+// not valid before: 2023-06-30 00:00:00+00:00
+// not valid after:  2024-07-30 23:59:59+00:00
 const char fingerprint___openweathermap_org[] PROGMEM = "a6:2a:18:c6:c9:81:08:64:ba:69:73:ef:44:1e:0a:a3:fe:fa:a5:4d";
 const char pubkey___openweathermap_org[] PROGMEM = R"PUBKEY(
 -----BEGIN PUBLIC KEY-----
@@ -30,8 +30,8 @@ TQIDAQAB
 
 // http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt
 // CN: Sectigo RSA Domain Validation Secure Server CA => name: Sectigo_RSA_Domain_Validation_Secure_Server_CA
-// not valid before: 2018-11-02 00:00:00
-// not valid after:  2030-12-31 23:59:59
+// not valid before: 2018-11-02 00:00:00+00:00
+// not valid after:  2030-12-31 23:59:59+00:00
 const char cert_Sectigo_RSA_Domain_Validation_Secure_Server_CA[] PROGMEM = R"CERT(
 -----BEGIN CERTIFICATE-----
 MIIGEzCCA/ugAwIBAgIQfVtRJrR2uhHbdBYLvFMNpzANBgkqhkiG9w0BAQwFADCB
@@ -72,8 +72,8 @@ yOGBQMkKW+ESPMFgKuOXwIlCypTPRpgSabuY0MLTDXJLR27lk8QyKGOHQ+SwMj4K
 
 // http://crt.usertrust.com/USERTrustRSAAddTrustCA.crt
 // CN: USERTrust RSA Certification Authority => name: USERTrust_RSA_Certification_Authority
-// not valid before: 2019-03-12 00:00:00
-// not valid after:  2028-12-31 23:59:59
+// not valid before: 2019-03-12 00:00:00+00:00
+// not valid after:  2028-12-31 23:59:59+00:00
 const char cert_USERTrust_RSA_Certification_Authority[] PROGMEM = R"CERT(
 -----BEGIN CERTIFICATE-----
 MIIFgTCCBGmgAwIBAgIQOXJEOvkit1HX02wQ3TE1lTANBgkqhkiG9w0BAQwFADB7