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HTML DOM Input Datetime max Property
The HTML DOM Input Datetime max property returns/sets max attribute of Input Datetime.
Syntax
Following is the syntax −
- Returning string value
inputDatetimeObject.max
- Setting max to string value
inputDatetimeObject.max = YYYY-MM-DDThh:mm:ssTZD
String Values
Here, “YYYY-MM-DDThh:mm:ssTZD” can be the following −
| stringValue | Details |
|---|---|
| YYYY | It defines year (eg:1998) |
| MM | It defines month (eg: 05 for May) |
| DD | It defines Day (eg: 24) |
| T | It is a separator for date and time |
| hh | It defines hour (eg:12) |
| mm | It defines minutes (eg:48) |
| ss | It defines seconds (eg:00) |
| TZD | Time Zone Designator (IST denotes Indian Standard Time) |
Example
Let us see an example of Input Datetime max property −
<!DOCTYPE html>
<html>
<head>
<title>Input Datetime Max</title>
</head>
<body>
<form>
Date & Time: <input type="datetime" id="dateTime" name="DateSelect" value="2019-12-31T23:49:59Z" max="2019-12-31T23:59:59Z">
</form>
<button onclick="getMaxDate()">Renew Insurance</button>
<div id="divDisplay"></div>
<script>
var inputDate = document.getElementById("dateTime");
var divDisplay = document.getElementById("divDisplay");
divDisplay.textContent = 'Insurance Datetime: '+inputDate.max;
function getMaxDate() {
var oldInputDate = inputDate.max;
inputDate.max = '2029-12-31T23:49:59Z';
divDisplay.textContent = 'New Insurance Datetime: '+inputDate.max;
}
</script>
</body>
</html>
Output
This will produce the following output −
Before clicking ‘Renew Insurance’ button −

After clicking ‘Renew Insurance’ button −

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