diff --git a/tests/test-rawcommit1 b/tests/test-rawcommit1
--- a/tests/test-rawcommit1
+++ b/tests/test-rawcommit1
@@ -2,32 +2,32 @@
 hg --debug init
 echo this is a1 > a
 hg add a
-hg commit -m0 -d "0 0"
+hg commit -m0 -d "1000000 0"
 echo this is b1 > b
 hg add b
-hg commit -m1 -d "0 0"
+hg commit -m1 -d "1000000 0"
 hg manifest 1
 echo this is c1 > c
-hg rawcommit -p 1 -d "0 0" -m2 c
+hg rawcommit -p 1 -d "1000000 0" -m2 c
 hg manifest 2
 hg parents
 rm b
-hg rawcommit -p 2 -d "0 0" -m3 b
+hg rawcommit -p 2 -d "1000000 0" -m3 b
 hg manifest 3
 hg parents
 echo this is a22 > a
-hg rawcommit -p 3 -d "0 0" -m4 a
+hg rawcommit -p 3 -d "1000000 0" -m4 a
 hg manifest 4
 hg parents
 echo this is c22 > c
-hg rawcommit -p 1 -d "0 0" -m5 c
+hg rawcommit -p 1 -d "1000000 0" -m5 c
 hg manifest 5
 hg parents
 # merge, but no files changed
-hg rawcommit -p 4 -p 5 -d "0 0" -m6
+hg rawcommit -p 4 -p 5 -d "1000000 0" -m6
 hg manifest 6
 hg parents
 # no changes what-so-ever
-hg rawcommit -p 6 -d "0 0" -m7
+hg rawcommit -p 6 -d "1000000 0" -m7
 hg manifest 7
 hg parents