time: Parse is incorrect on some platforms #18373
Description
What version of Go are you using (go version)?
OS X: go version go1.6 darwin/amd64
PowerPC (PPC): go version go1.4.2 gccgo (GCC) 5.4.0 linux/ppc64le
s390x: go version go1.4.2 gccgo (GCC) 5.4.0 linux/s390x
What operating system and processor architecture are you using (go env)?
OS X:
GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/gopath"
GORACE=""
GOROOT="/usr/local/opt/go/libexec"
GOTOOLDIR="/usr/local/opt/go/libexec/pkg/tool/darwin_amd64"
GO15VENDOREXPERIMENT="1"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fno-common"
CXX="clang++"
CGO_ENABLED="1"
PPC:
GOARCH="ppc64le"
GOBIN=""
GOCHAR="9"
GOEXE=""
GOHOSTARCH="ppc64le"
GOHOSTOS="linux"
GOOS="linux"
GOPATH=""
GORACE=""
GOROOT="/opt/toolchain"
GOTOOLDIR="/opt/toolchain/libexec/gcc/ppc64le-linux/5.4.0"
CC="/opt/toolchain/bin/gcc"
GOGCCFLAGS="-fPIC -pthread -fmessage-length=0"
CXX="/opt/toolchain/bin/g++"
CGO_ENABLED="1"
s390x:
GOARCH="s390x"
GOBIN=""
GOCHAR=""
GOEXE=""
GOHOSTARCH="s390x"
GOHOSTOS="linux"
GOOS="linux"
GOPATH=""
GORACE=""
GOROOT="/opt/toolchain/"
GOTOOLDIR="/opt/toolchain/libexec/gcc/s390x-linux/5.4.0"
CC="/opt/toolchain/bin/gcc"
GOGCCFLAGS="-fPIC -pthread -fmessage-length=0"
CXX="/opt/toolchain/bin/g++"
CGO_ENABLED="1"
What did you do?
Ran this program:
package main
import (
"fmt"
"time"
)
func main() {
value := "2000-09-31 00:00:00.000231"
format := "2006-01-02 15:04:05.000000"
v, err := time.Parse(format, value)
if err == nil {
fmt.Printf("parsed: %v\n", v.String())
} else {
fmt.Printf("not parsed: %v\n", err)
}
}
Play at https://play.golang.org/p/PZbFKkwPKd
*Note that the time value - 2000-09-31 00:00:00.000231 - is invalid as the last day in September, 2000 is 30 and not 31.
What did you expect to see?
not parsed: parsing time "2000-09-31 00:00:00.000231": day out of range
What did you see instead?
On OS X, worked as expected but on PPC and s390x, saw this instead:
parsed: 2000-10-01 00:00:00.000231 +0000 UTC