export const getMeridiem = (date, utils) => { if (!date) { return null; } return utils.getHours(date) >= 12 ? 'pm' : 'am'; }; export const convertValueToMeridiem = (value, meridiem, ampm) => { if (ampm) { const currentMeridiem = value >= 12 ? 'pm' : 'am'; if (currentMeridiem !== meridiem) { return meridiem === 'am' ? value - 12 : value + 12; } } return value; }; export const convertToMeridiem = (time, meridiem, ampm, utils) => { const newHoursAmount = convertValueToMeridiem(utils.getHours(time), meridiem, ampm); return utils.setHours(time, newHoursAmount); }; export const getSecondsInDay = (date, utils) => { return utils.getHours(date) * 3600 + utils.getMinutes(date) * 60 + utils.getSeconds(date); }; export const createIsAfterIgnoreDatePart = (disableIgnoringDatePartForTimeValidation = false, utils) => (dateLeft, dateRight) => { if (disableIgnoringDatePartForTimeValidation) { return utils.isAfter(dateLeft, dateRight); } return getSecondsInDay(dateLeft, utils) > getSecondsInDay(dateRight, utils); };