Calling Twitter API results in "Timestamp out of bounds" Error - twitter

Question

I am calling Twitter for fetching user Timeline Details. Here is my code
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => "https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=twitterapi",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => array(
"authorization: OAuth oauth_consumer_key=\"XXXXXXX\",oauth_token=\"XXXXXXX\",oauth_signature_method=\"HMAC-SHA1\",oauth_timestamp=\"XXXXXXX\",oauth_nonce=\"XXXXXXXX\",oauth_version=\"1.0\",oauth_signature=\"XXXXXXX\"",
"cache-control: no-cache"
),
));
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
I am able to fetch details. But after a day I am getting this response
{"errors":[{"code":135,"message":"Timestamp out of bounds."}]}
Is my Token getting expired ? I want to run this code as a background request.

Answer 1

The oauth_timestamp should be the number of whole seconds since 1 Jan 1970 00:00:00 UTC.
{"errors":[{"code":135,"message":"Timestamp out of bounds."}]}
Usually means that your server / machine time is off by more than 30 seconds (actual time not including time-zone differences). Look at the response header to see what Twitter's time is.
oauth_timestamp=1521786006