diff --git a/testing/tests/regression-suite/832-freebusy.result b/testing/tests/regression-suite/832-freebusy.result
index fe1fbae3..28fc5ba8 100644
--- a/testing/tests/regression-suite/832-freebusy.result
+++ b/testing/tests/regression-suite/832-freebusy.result
@@ -7,9 +7,9 @@ BEGIN:VCALENDAR
 PRODID:-//Catalyst.Net.NZ//NONSGML AWL Calendar//EN
 VERSION:2.0
 BEGIN:VFREEBUSY
-DTSTAMP:20061222T122644Z
-DTSTART:20061122T122644
-DTEND:20070710T112644
+DTSTAMP:yyyymmddThhmmssZ
+DTSTART:yyyymmddThhmmss
+DTEND:yyyymmddThhmmss
 FREEBUSY:20061102T210000/PT1H
 FREEBUSY:20061109T210000/PT1H
 FREEBUSY:20061116T210000/PT1H
diff --git a/testing/tests/regression-suite/832-freebusy.test b/testing/tests/regression-suite/832-freebusy.test
index ae84a6ae..31bb5464 100644
--- a/testing/tests/regression-suite/832-freebusy.test
+++ b/testing/tests/regression-suite/832-freebusy.test
@@ -5,3 +5,7 @@ TYPE=GET
 URL=http://mycaldav/freebusy.php/user1@example.net
 HEAD
 
+REPLACE=/^DTSTAMP:\d{8}T\d{6}Z$/DTSTAMP:yyyymmddThhmmssZ/
+REPLACE=/^DTSTART:\d{8}T\d{6}$/DTSTART:yyyymmddThhmmss/
+REPLACE=/^DTEND:\d{8}T\d{6}$/DTEND:yyyymmddThhmmss/
+
diff --git a/testing/tests/regression-suite/833-freebusy.result b/testing/tests/regression-suite/833-freebusy.result
index a378d4de..28fc5ba8 100644
--- a/testing/tests/regression-suite/833-freebusy.result
+++ b/testing/tests/regression-suite/833-freebusy.result
@@ -7,9 +7,9 @@ BEGIN:VCALENDAR
 PRODID:-//Catalyst.Net.NZ//NONSGML AWL Calendar//EN
 VERSION:2.0
 BEGIN:VFREEBUSY
-DTSTAMP:20061222T123418Z
-DTSTART:20061122T123418
-DTEND:20070710T113418
+DTSTAMP:yyyymmddThhmmssZ
+DTSTART:yyyymmddThhmmss
+DTEND:yyyymmddThhmmss
 FREEBUSY:20061102T210000/PT1H
 FREEBUSY:20061109T210000/PT1H
 FREEBUSY:20061116T210000/PT1H
diff --git a/testing/tests/regression-suite/833-freebusy.test b/testing/tests/regression-suite/833-freebusy.test
index 40836caf..562250f5 100644
--- a/testing/tests/regression-suite/833-freebusy.test
+++ b/testing/tests/regression-suite/833-freebusy.test
@@ -5,3 +5,6 @@ TYPE=GET
 URL=http://mycaldav/freebusy.php/user1/home/
 HEAD
 
+REPLACE=/^DTSTAMP:\d{8}T\d{6}Z$/DTSTAMP:yyyymmddThhmmssZ/
+REPLACE=/^DTSTART:\d{8}T\d{6}$/DTSTART:yyyymmddThhmmss/
+REPLACE=/^DTEND:\d{8}T\d{6}$/DTEND:yyyymmddThhmmss/