diff --git a/src/bin_client/tezos-init-sandboxed-client.sh b/src/bin_client/tezos-init-sandboxed-client.sh
index 5da7c3f64..599eead4d 100755
--- a/src/bin_client/tezos-init-sandboxed-client.sh
+++ b/src/bin_client/tezos-init-sandboxed-client.sh
@@ -288,7 +288,7 @@ main () {
     cat <<EOF
 if type tezos-client-reset >/dev/null 2>&1 ; then tezos-client-reset; fi ;
 PATH="$client_dir/bin:\$PATH" ; export PATH ;
-alias tezos-activate-alpha="$client  -block genesis activate protocol ProtoALphaALphaALphaALphaALphaALphaALphaALphaDdp3zK with fitness 1 and key dictator and parameters $parameters_file --timestamp $(date +%FT%TZ --utc --date="1 hour ago")" ;
+alias tezos-activate-alpha="$client  -block genesis activate protocol ProtoALphaALphaALphaALphaALphaALphaALphaALphaDdp3zK with fitness 1 and key dictator and parameters $parameters_file --timestamp $(TZ='AAA+1' date +%FT%TZ)" ;
 alias tezos-client-reset="rm -rf \"$client_dir\"; unalias tezos-activate-alpha tezos-client-reset" ;
 alias tezos-autocomplete="if [ \$ZSH_NAME ] ; then autoload bashcompinit ; bashcompinit ; fi ; source \"$bin_dir/bash-completion.sh\"" ;
 trap tezos-client-reset EXIT ;