Nanosecond precision is preserved by passing nanoseconds as a separate
argument to the constructor. If nanoseconds are given, any subsecond
precision in the timestamp will be overridden when encoding the timestamp
as a string.
Example:
use Google\Cloud\Spanner\SpannerClient;
$spanner = new SpannerClient();
$timestamp = $spanner->timestamp(new \DateTime('2003-02-05 11:15:02.421827Z'));
// Timestamps can be cast to strings.
echo (string) $timestamp;
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# Cloud Spanner Client - Class Timestamp (1.104.0)\n\nVersion latestkeyboard_arrow_down\n\n- [1.104.0 (latest)](/php/docs/reference/cloud-spanner/latest/Timestamp)\n- [1.103.0](/php/docs/reference/cloud-spanner/1.103.0/Timestamp)\n- [1.102.0](/php/docs/reference/cloud-spanner/1.102.0/Timestamp)\n- [1.101.0](/php/docs/reference/cloud-spanner/1.101.0/Timestamp)\n- [1.100.0](/php/docs/reference/cloud-spanner/1.100.0/Timestamp)\n- [1.98.0](/php/docs/reference/cloud-spanner/1.98.0/Timestamp)\n- [1.97.0](/php/docs/reference/cloud-spanner/1.97.0/Timestamp)\n- [1.96.0](/php/docs/reference/cloud-spanner/1.96.0/Timestamp)\n- [1.95.0](/php/docs/reference/cloud-spanner/1.95.0/Timestamp)\n- [1.94.0](/php/docs/reference/cloud-spanner/1.94.0/Timestamp)\n- [1.93.1](/php/docs/reference/cloud-spanner/1.93.1/Timestamp)\n- [1.92.1](/php/docs/reference/cloud-spanner/1.92.1/Timestamp)\n- [1.91.0](/php/docs/reference/cloud-spanner/1.91.0/Timestamp)\n- [1.90.0](/php/docs/reference/cloud-spanner/1.90.0/Timestamp)\n- [1.89.0](/php/docs/reference/cloud-spanner/1.89.0/Timestamp)\n- [1.88.0](/php/docs/reference/cloud-spanner/1.88.0/Timestamp)\n- [1.87.0](/php/docs/reference/cloud-spanner/1.87.0/Timestamp)\n- [1.86.0](/php/docs/reference/cloud-spanner/1.86.0/Timestamp)\n- [1.85.0](/php/docs/reference/cloud-spanner/1.85.0/Timestamp)\n- [1.84.0](/php/docs/reference/cloud-spanner/1.84.0/Timestamp)\n- [1.83.0](/php/docs/reference/cloud-spanner/1.83.0/Timestamp)\n- [1.82.0](/php/docs/reference/cloud-spanner/1.82.0/Timestamp)\n- [1.81.0](/php/docs/reference/cloud-spanner/1.81.0/Timestamp)\n- [1.80.0](/php/docs/reference/cloud-spanner/1.80.0/Timestamp)\n- [1.79.0](/php/docs/reference/cloud-spanner/1.79.0/Timestamp)\n- [1.78.0](/php/docs/reference/cloud-spanner/1.78.0/Timestamp)\n- [1.77.0](/php/docs/reference/cloud-spanner/1.77.0/Timestamp)\n- [1.76.1](/php/docs/reference/cloud-spanner/1.76.1/Timestamp)\n- [1.68.0](/php/docs/reference/cloud-spanner/1.68.0/Timestamp)\n- [1.67.0](/php/docs/reference/cloud-spanner/1.67.0/Timestamp)\n- [1.66.0](/php/docs/reference/cloud-spanner/1.66.0/Timestamp)\n- [1.65.0](/php/docs/reference/cloud-spanner/1.65.0/Timestamp)\n- [1.64.0](/php/docs/reference/cloud-spanner/1.64.0/Timestamp)\n- [1.63.2](/php/docs/reference/cloud-spanner/1.63.2/Timestamp)\n- [1.62.1](/php/docs/reference/cloud-spanner/1.62.1/Timestamp)\n- [1.61.0](/php/docs/reference/cloud-spanner/1.61.0/Timestamp)\n- [1.60.0](/php/docs/reference/cloud-spanner/1.60.0/Timestamp)\n- [1.59.0](/php/docs/reference/cloud-spanner/1.59.0/Timestamp)\n- [1.58.4](/php/docs/reference/cloud-spanner/1.58.4/Timestamp)\n- [1.57.0](/php/docs/reference/cloud-spanner/1.57.0/Timestamp)\n- [1.56.0](/php/docs/reference/cloud-spanner/1.56.0/Timestamp)\n- [1.55.0](/php/docs/reference/cloud-spanner/1.55.0/Timestamp)\n- [1.54.2](/php/docs/reference/cloud-spanner/1.54.2/Timestamp) \nReference documentation and code samples for the Cloud Spanner Client class Timestamp.\n\nRepresents a value with a data type of\n[Timestamp](https://cloud.google.com/spanner/docs/reference/rpc/google.spanner.v1#google.spanner.v1.TypeCode).\n\nNanosecond precision is preserved by passing nanoseconds as a separate\nargument to the constructor. If nanoseconds are given, any subsecond\nprecision in the timestamp will be overridden when encoding the timestamp\nas a string.\n\nExample: \n\n use Google\\Cloud\\Spanner\\SpannerClient;\n\n $spanner = new SpannerClient();\n\n $timestamp = $spanner-\u003etimestamp(new \\DateTime('2003-02-05 11:15:02.421827Z'));\n\n // Timestamps can be cast to strings.\n echo (string) $timestamp;\n\nNamespace\n---------\n\nGoogle \\\\ Cloud \\\\ Spanner\n\nMethods\n-------\n\n### type\n\nGet the type.\n\nExample: \n\n $type = $timestamp-\u003etype();"]]