react-datetime-picker/dist/shared/dates.js

A date range picker for your React app.

export function convert12to24(hour12, amPm) {
    let hour24 = Number(hour12);
    if (amPm === 'am' && hour24 === 12) {
        hour24 = 0;
    }
    else if (amPm === 'pm' && hour24 < 12) {
        hour24 += 12;
    }
    return hour24;
}
export function convert24to12(hour24) {
    const hour12 = Number(hour24) % 12 || 12;
    return [hour12, Number(hour24) < 12 ? 'am' : 'pm'];
}