I am trying to make a time conversion function that takes time in as "h:mm A" and converts it to military time (HH:mm:00) in day.js, but am struggling to figure it out. I was able to complete this task without dayjs but can't quite figure it out with dayjs. Here is my attempt at it:
The 00 is there as I want the seconds to default to 00. Thank you!
function convertToMilitaryTime(formattedTime) {
if (formattedTime) { //formattedTime is 'h:mm A'
const formatted = dayjs(formattedTime, "h:mm A")
return day(formattedTime, ['h:mm A']).format("HH:mm:00")
}
return formattedTime;
}
console.log(convertToMilitaryTime("10:24 AM")); // not a valid date string<script src="https://cdn.jsdelivr.net/npm/dayjs@1.11.3/dayjs.min.js"></script>Just prepend any date to make a valid dayjs date object
const ampm2military = ampm => ampm ? dayjs(`1/1/1 ${ampm}`).format("HH:mm:00") : null;
console.log(ampm2military("1:24 PM"));<script src="https://cdn.jsdelivr.net/npm/dayjs@1.11.3/dayjs.min.js"></script>There are a couple of errors in your code:
dayjs, not daycustomParseFormat - "String + Format" depends on this plugin; it's noted on the top part of the docs (in yellow)); you have to load this plugin for the syntax to workdayjs with the new capabilities// extend dayjs with the loaded customParseFormat plugin
dayjs.extend(window.dayjs_plugin_customParseFormat)
function convertToMilitaryTime(formattedTime) {
if (formattedTime) { //formattedTime is 'h:mm A'
const formatted = dayjs(formattedTime, "h:mm A")
// the function name is dayjs, not day
return dayjs(formattedTime, ['h:mm A']).format("HH:mm:00")
}
return formattedTime;
}
console.log(convertToMilitaryTime("10:24 AM")); // not a valid date string<script src="https://cdn.jsdelivr.net/npm/dayjs@1.11.3/dayjs.min.js"></script>
<!-- load the required plugin: -->
<script src="https://unpkg.com/dayjs@1.11.3/plugin/customParseFormat.js"></script>// extend dayjs with the loaded customParseFormat plugin
dayjs.extend(window.dayjs_plugin_customParseFormat)
const convertToMilitaryTime = (ft) => dayjs(ft, "h:mm A", "en", true).isValid() ? dayjs(ft, 'h:mm A').format("HH:mm:00") : ft
console.log(convertToMilitaryTime("10:24 AM")); // not a valid date string<script src="https://cdn.jsdelivr.net/npm/dayjs@1.11.3/dayjs.min.js"></script>
<!-- load the required plugin: -->
<script src="https://unpkg.com/dayjs@1.11.3/plugin/customParseFormat.js"></script>