标签:dig display 允许 settime comment tip word format 希伯来
废话少说,Show me the code
/**
* 日历
*/
//公历
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSDate *date = [NSDate new];
NSLog(@"%ld-%ld-%ld",
[calendar component:NSCalendarUnitYear fromDate:date],
[calendar component:NSCalendarUnitMonth fromDate:date],
[calendar component:NSCalendarUnitDay fromDate:date]);
// 公历:2018-5-9
//佛历
calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierBuddhist];
NSLog(@"%ld-%ld-%ld",
[calendar component:NSCalendarUnitYear fromDate:date],
[calendar component:NSCalendarUnitMonth fromDate:date],
[calendar component:NSCalendarUnitDay fromDate:date]);
// 佛历:2561-5-9
//日本日历
calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierJapanese];
NSLog(@"%ld-%ld-%ld",
[calendar component:NSCalendarUnitYear fromDate:date],
[calendar component:NSCalendarUnitMonth fromDate:date],
[calendar component:NSCalendarUnitDay fromDate:date]);
// 日本日历:30-5-9
/**
* 地区
*/
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateStyle:NSDateFormatterLongStyle];
[dateFormatter setTimeStyle:NSDateFormatterLongStyle];
NSString *formattedDateString = [dateFormatter stringFromDate:date];
NSLog(@"Default Locale Formatted Date:%@", formattedDateString);
// 系统为公历:Default Locale Formatted Date:9 May 2018 at 4:25:06 PM GMT+8
// 系统为佛历:Default Locale Formatted Date:9 May 2561 BE at 4:21:29 PM GMT+8
//中国Locale
dateFormatter.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"];
formattedDateString = [dateFormatter stringFromDate:date];
NSLog(@"ZH Locale Formatted Date:%@", formattedDateString);
// ZH Locale Formatted Date:2018年5月9日 GMT+8 下午4:21:29
/**
* 时区
*/
dateFormatter.timeZone = [NSTimeZone timeZoneWithName:@"GMT"];
formattedDateString = [dateFormatter stringFromDate:date];
NSLog(@"GMT Timezone Formatted Date:%@", formattedDateString);
// GMT Timezone Formatted Date:2018年5月9日 GMT 上午8:21:29
/**
* NSDateComponents
*/
// Yearless date
NSDateComponents *components = [[NSDateComponents alloc] init];
[components setMonth:11];
[components setDay:7];
NSCalendar *gregorian = [[NSCalendar alloc]
initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSDate *birthday = [gregorian dateFromComponents:components];
formattedDateString = [dateFormatter stringFromDate:birthday];
NSLog(@"GMT Timezone Formatted Date:%@", formattedDateString);
// GMT Timezone Formatted Date:1年11月6日 GMT 下午3:54:17
关于JavaScript的Date对象可以参考以下链接:
Understanding Date and Time in JavaScript
JavaScript Date Objects
const birthday = new Date(1980, 6, 31);
birthday.getFullYear(); // 1980
birthday.getMonth(); // 6
birthday.getDate(); // 31
birthday.getDay(); // 4
birthday.getHours(); // 0
birthday.getMinutes(); // 0
birthday.getSeconds(); // 0
birthday.getMilliseconds(); // 0
birthday.getTime(); // 333849600000 (for GMT)
var options = { weekday: ‘long‘, year: ‘numeric‘, month: ‘long‘, day: ‘numeric‘ };
var today = new Date();
today.toLocaleDateString("en-US"); // 5/9/2018
today.toLocaleDateString("en-US",options); // Wednesday, May 9, 2018
today.toLocaleDateString("hi-IN", options); // ??????, 9 ?? 2018
Moment.js -Parse, validate, manipulate, and display dates and times in JavaScript。Moment是一个非常强大的JavaScript时间日期库,是对原生对象的很好的扩展。
//Format
moment().format(‘MMMM Do YYYY, h:mm:ss a‘); // May 9th 2018, 8:05:15 pm
//Calendar Time
moment().add(10, ‘days‘).calendar();
//Multiple Locale Support
moment.locale(); // en
//TimeZone
var jun = moment("2014-06-01T12:00:00Z");
var dec = moment("2014-12-01T12:00:00Z");
jun.tz(‘America/Los_Angeles‘).format(‘ha z‘); // 5am PDT
dec.tz(‘America/Los_Angeles‘).format(‘ha z‘); // 4am PST
目前还有一个更新、更现代的时间日期库:luxon,可以尝试一下。
一篇文章吃透iOS、JS的时间日期(Date, Calendar, Locale, TimeZone)
标签:dig display 允许 settime comment tip word format 希伯来
原文地址:https://www.cnblogs.com/wdsunny/p/9026802.html