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{{exclaim}} [https://support.office.com/zh-tw/article/value-%E5%87%BD%E6%95%B8-257d0108-07dc-437d-ae1c-bc2d3953d8c2 VALUE()] function on Excel is number of days since 1900/1/1. [https://support.google.com/docs/answer/3094220?hl=en VALUE()] function on Google sheet is number of days since 1899/12/30 {{access | date=2019-05-22}} | {{exclaim}} [https://support.office.com/zh-tw/article/value-%E5%87%BD%E6%95%B8-257d0108-07dc-437d-ae1c-bc2d3953d8c2 VALUE()] function on Excel is number of days since 1900/1/1. [https://support.google.com/docs/answer/3094220?hl=en VALUE()] function on Google sheet is number of days since 1899/12/30 {{access | date=2019-05-22}} | ||
== Convert between date and unix timestamp == | |||
Online tool | |||
* {{Gd}} [https://www.unixtimestamp.com/index.php Unix Time Stamp - Epoch Converter] | |||
<pre> | <pre> | ||
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// 2019-03-14T00:00:00+00:00 in RFC 3339 | // 2019-03-14T00:00:00+00:00 in RFC 3339 | ||
</pre> | </pre> | ||
=== PHP way: convert to date time from unix timestamp === | === PHP way: convert to date time from unix timestamp === | ||
Using the [https://www.php.net/manual/en/function.date.php date()] function | |||
<pre> | <pre> | ||
date_default_timezone_set("Europe/London"); | date_default_timezone_set("Europe/London"); | ||
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=== PHP way: convert to unix timestamp from | === PHP way: convert to unix timestamp from date time === | ||
Using the [https://www.php.net/manual/en/function.strtotime.php strtotime()] function | |||
<pre> | <pre> | ||
date_default_timezone_set("Europe/London"); | date_default_timezone_set("Europe/London"); | ||