{"id":1633,"date":"2020-06-21T20:52:00","date_gmt":"2020-06-21T12:52:00","guid":{"rendered":"http:\/\/39.97.231.10\/?p=1633"},"modified":"2020-06-21T20:52:00","modified_gmt":"2020-06-21T12:52:00","slug":"python-datetime%e6%a8%a1%e5%9d%97-%e6%97%a5%e6%9c%9f%e6%97%b6%e9%97%b4%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=1633","title":{"rendered":"python datetime\u6a21\u5757-\u65e5\u671f\u65f6\u95f4\u5904\u7406"},"content":{"rendered":"<div>\n<h3>\u524d\u8a00<\/h3>\n<p>datetime\u662fpython\u7684\u5185\u7f6e\u6a21\u5757\uff0c\u7528\u6765\u5904\u7406\u65e5\u671f\u548c\u65f6\u95f4\u3002<br \/>\n\u8be5\u6a21\u5757\u5e38\u7528\u7684\u7c7b\u6709\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7c7b\u540d<\/th>\n<th>\u529f\u80fd\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>date<\/td>\n<td>\u65e5\u671f\u5bf9\u8c61<\/td>\n<\/tr>\n<tr>\n<td>time<\/td>\n<td>\u65f6\u95f4\u5bf9\u8c61<\/td>\n<\/tr>\n<tr>\n<td>datetime<\/td>\n<td>\u65e5\u671f\u65f6\u95f4\u5bf9\u8c61<\/td>\n<\/tr>\n<tr>\n<td>timedelta<\/td>\n<td>\u65f6\u95f4\u95f4\u9694<\/td>\n<\/tr>\n<tr>\n<td>tzinfo<\/td>\n<td>\u65f6\u533a\u4fe1\u606f\u5bf9\u8c61<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u672c\u6587\u65e8\u5728\u8bb2\u89e3datetime\u6a21\u5757\u4e2ddatetime\u7c7b\u7684\u4f7f\u7528\u65b9\u6cd5\u3002<br \/>\ndatetime\u5bf9\u8c61\u662f date \u4e0e time \u7684\u7ed3\u5408\u4f53\uff0c\u6db5\u76d6\u4e86date\u548ctime\u5bf9\u8c61\u7684\u6240\u6709\u4fe1\u606f\u3002<\/p>\n<h3>\u4e00\u3001\u5bfc\u5165datetime\u7c7b<\/h3>\n<p>\u7b2c\u4e00\u6b65\uff0c\u5148\u5bfc\u5165datetime\u7c7b\uff1a<\/p>\n<div>\n<pre>from datetime import datetime\n<\/pre>\n<\/div>\n<h3>\u4e8c\u3001\u6784\u9020datetime\u5bf9\u8c61<\/h3>\n<p>datetime(year,month,day,hour=0, minute=0, second=0, microsecond=0, tzinfo=None)<br \/>\n\u53c2\u6570\u8303\u56f4\uff1a<\/p>\n<ul>\n<li>MINYEAR &lt;= year &lt;= MAXYEAR<\/li>\n<li>1 &lt;= month &lt;= 12<\/li>\n<li>1 &lt;= day &lt;= \u6307\u5b9a\u5e74\u6708\u7684\u5929\u6570<\/li>\n<li>0 &lt;= hour &lt; 24<\/li>\n<li>0 &lt;= minute &lt; 60<\/li>\n<li>0 &lt;= second &lt; 60<\/li>\n<li>0 &lt;= microsecond &lt; 1000000<\/li>\n<\/ul>\n<p>\u5b9e\u4f8b\uff1a<\/p>\n<div>\n<pre>datetime(2019,12,6,13,30,50)\n# \u8f93\u51fa : datetime.datetime(2019, 12, 6, 13, 30, 50)\n<\/pre>\n<\/div>\n<h3>\u4e09\u3001\u7c7b\u65b9\u6cd5<\/h3>\n<ol>\n<li>datetime.today()<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u672c\u5730\u533a\u5f53\u524d\u65e5\u671f\u65f6\u95f4datetime\u5bf9\u8c61<\/p>\n<div>\n<pre>datetime.today()\n# \u8f93\u51fa : datetime.datetime(2019, 12, 9, 13, 27, 54, 693978)\n<\/pre>\n<\/div>\n<ol start=\\\"2\\\">\n<li>datetime.now(tz=None)<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u672c\u5730\u533a\u5f53\u524d\u65e5\u671f\u65f6\u95f4datetime\u5bf9\u8c61\uff0c\u53ef\u4ee5\u6dfb\u52a0\u65f6\u533atz<br \/>\n\u9ed8\u8ba4\u65e0\u65f6\u533a\u65f6\uff0c\u8fd4\u56de\u7ed3\u679c\u548cdatetime.today()\u4e00\u81f4<\/p>\n<div>\n<pre>datetime.now()\n# \u8f93\u51fa : datetime.datetime(2019, 12, 9, 13, 27, 54, 693978)\n<\/pre>\n<\/div>\n<ol start=\\\"3\\\">\n<li>datetime.utcnow()<\/li>\n<\/ol>\n<p>\u8fd4\u56deUTC\uff08\u540c\u683c\u6797\u5c3c\u6cbb\u65f6\u95f4\uff09\u65e5\u671f\u65f6\u95f4datetime\u5bf9\u8c61<\/p>\n<div>\n<pre>datetime.now()\n# \u8f93\u51fa : datetime.datetime(2019, 12, 9, 13, 27, 54, 693978)\n<\/pre>\n<\/div>\n<ol start=\\\"4\\\">\n<li>datetime.fromtimestamp(timestamp, tz=None)<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u7ed9\u5b9a\u65f6\u95f4\u6233\u7684datetime\u5bf9\u8c61\uff0c\u65f6\u533a\u9ed8\u8ba4\u4e3a\u7a7a\uff0c\u8fd4\u56de\u5f53\u5730\u65e5\u671f\u65f6\u95f4\uff0c\u4e5f\u53ef\u4ee5\u6307\u5b9a\u65f6\u533a<\/p>\n<div>\n<pre>datetime.fromtimestamp(1575877756)\n# \u8f93\u51fa : datetime.datetime(2019, 12, 9, 15, 49, 16)\n<\/pre>\n<\/div>\n<p>\u60f3\u83b7\u53d6\u5f53\u524d\u65f6\u95f4\u6233\uff0c\u53ef\u901a\u8fc7time\u6a21\u5757\u7684time\u65b9\u6cd5\u5b9e\u73b0:<\/p>\n<div>\n<pre>import time\ntime.time()\n# \u8f93\u51fa\uff1a1575877756.4673727\n<\/pre>\n<\/div>\n<ol start=\\\"5\\\">\n<li>datetime.utcfromtimestamp(timestamp)<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u7ed9\u5b9a\u65f6\u95f4\u6233\u7684datetime\u5bf9\u8c61\uff0c\u65e5\u671f\u65f6\u95f4\u9ed8\u8ba4\u4e3aUTC\uff08\u540c\u683c\u6797\u5c3c\u6cbb\u65f6\u95f4\uff09<\/p>\n<div>\n<pre>datetime.fromtimestamp(1575877756)\n# \u8f93\u51fa : datetime.datetime(2019, 12, 9, 7, 49, 16)\n<\/pre>\n<\/div>\n<ol start=\\\"6\\\">\n<li>datetime.fromordinal(ordinal)<\/li>\n<\/ol>\n<p>\u8f93\u5165\u53c2\u6570\u4e3a\u5929\u6570\uff0c\u8fd4\u56de\u4ece\u516c\u51430\u5e74\u5f00\u59cb\u8ba1\u6570\u7684\u5e74\u3001\u6708\u3001\u65e5datetime\u5bf9\u8c61<br \/>\n\u6bd4\u5982\u8f93\u5165\u53c2\u6570\u4e3a365\uff0c\u5219\u8fd4\u56de1-12-31<\/p>\n<div>\n<pre>datetime.fromordinal(365)\n# \u8f93\u51fa : datetime.datetime(1, 12, 31, 0, 0)\n<\/pre>\n<\/div>\n<ol start=\\\"7\\\">\n<li>datetime.combine(date, time, tzinfo=self.tzinfo)<\/li>\n<\/ol>\n<p>\u62fc\u63a5date\u548ctime\u5bf9\u8c61\uff0c\u5f62\u6210\u4e00\u4e2a\u65b0\u7684datetime\u5bf9\u8c61<br \/>\n\u53ef\u4ee5\u8f93\u5165\u65f6\u533a\u53c2\u6570\uff0c\u5426\u5219\u9ed8\u8ba4\u4e3a\u539ftime\u7684\u65f6\u533a<\/p>\n<div>\n<pre>date_ = datetime.today().date()\ntime_ = datetime.today().time()\ndatetime.combine(date_,time_)\n# \u8f93\u51fa : datetime.datetime(2019, 12, 9, 16, 12, 56, 914484)\n<\/pre>\n<\/div>\n<ol start=\\\"8\\\">\n<li>datetime.strptime(date_string, format)<\/li>\n<\/ol>\n<p>\u5c06\u683c\u5f0f\u5316\u65e5\u671f\u65f6\u95f4\u5b57\u7b26\u4e32\uff0c\u8f6c\u6362\u4e3adatetime\u5bf9\u8c61\uff0c\u53ef\u4ee5\u8f6c\u6362\u65e5\u671f\u3001\u65f6\u95f4\u3001\u65e5\u671f\u65f6\u95f4<\/p>\n<div>\n<pre>datetime.strptime(\\'2019-11-05\\',\\'%Y-%m-%d\\')\n# \u8f93\u51fa : datetime.datetime(2019, 11, 5, 0, 0)\ndatetime.strptime(\\'09:30:50\\',\\'%H:%M:%S\\')\n# \u8f93\u51fa : datetime.datetime(1900, 1, 1, 9, 30, 50)\ndatetime.strptime(\\'2019-11-05 09:30:50\\',\\'%Y-%m-%d %H:%M:%S\\')\n# \u8f93\u51fa : datetime.datetime(2019, 11, 5, 9, 30, 50)\n<\/pre>\n<\/div>\n<h3>\u56db\u3001\u5b9e\u4f8b\u65b9\u6cd5<\/h3>\n<ol>\n<li>datetime.date()<\/li>\n<\/ol>\n<p>\u8fd4\u56dedate\u5bf9\u8c61<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.date()\n# \u8f93\u51fa : datetime.date(2019, 12, 6)\n<\/pre>\n<\/div>\n<ol start=\\\"2\\\">\n<li>datetime.time()<\/li>\n<\/ol>\n<p>\u8fd4\u56detime\u5bf9\u8c61<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.time()\n# \u8f93\u51fa : datetime.time(13, 30, 50)\n<\/pre>\n<\/div>\n<ol start=\\\"3\\\">\n<li>datetime.timestamp()<\/li>\n<\/ol>\n<p>\u5bf9\u4e8e\u7ed9\u5b9a\u7684 datetime\u5bf9\u8c61\u8fd4\u56de\u65f6\u95f4\u6233<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.timestamp()\n# \u8f93\u51fa : 1575610250.0\n<\/pre>\n<\/div>\n<ol start=\\\"4\\\">\n<li>datetime.weekday()<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u661f\u671f\u51e0\uff0c\u661f\u671f\u4e00\u4e3a 0\uff0c\u661f\u671f\u5929\u4e3a 6<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.weekday()\n# \u8f93\u51fa : 4\n<\/pre>\n<\/div>\n<ol start=\\\"5\\\">\n<li>datetime.isoweekday()<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u661f\u671f\u51e0\uff0c\u661f\u671f\u4e00\u4e3a 1\uff0c\u661f\u671f\u5929\u4e3a 7<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.isoweekday()\n# \u8f93\u51fa : 5\n<\/pre>\n<\/div>\n<ol start=\\\"6\\\">\n<li>datetime.isocalendar()<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u6570\u7ec4\uff1a\uff08\u5e74\u3001\u7b2c\u591a\u5c11\u5468\u3001\u661f\u671f\u51e0\uff09<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.isocalendar()\n# \u8f93\u51fa : (2019, 49, 5)\n<\/pre>\n<\/div>\n<ol start=\\\"7\\\">\n<li>datetime.ctime()<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u65e5\u671f\u65f6\u95f4\u7684\u5b57\u7b26\u4e32\u8868\u793a<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.ctime()\n# \u8f93\u51fa : \\'Fri Dec  6 13:30:50 2019\\'\n<\/pre>\n<\/div>\n<ol start=\\\"8\\\">\n<li>datetime.strftime(date_string, format)<\/li>\n<\/ol>\n<p>\u5c06datetime\u5bf9\u8c61\u8f6c\u6362\u4e3a\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/p>\n<div>\n<pre>d = datetime.today()\ndatetime.strftime(d,\\'%Y-%m-%d %H:%M:%S\\')\n# \u8f93\u51fa : \\'2019-12-09 16:32:18\\'\n<\/pre>\n<\/div>\n<ol start=\\\"9\\\">\n<li>datetime.toordinal()<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u4ece\u516c\u51430\u5e74\u5230\u6307\u5b9adatetime\u7684\u5929\u6570<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.toordinal()\n# \u8f93\u51fa : 737399\n<\/pre>\n<\/div>\n<h3>\u4e94\u3001\u7c7b\u5b9e\u4f8b\u5c5e\u6027<\/h3>\n<ol>\n<li>datetime.year<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u7ed9\u5b9adatetime\u5bf9\u8c61\u7684\u5e74\u4efd<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.year\n# \u8f93\u51fa : 2019\n<\/pre>\n<\/div>\n<ol start=\\\"2\\\">\n<li>datetime.month<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u7ed9\u5b9adatetime\u5bf9\u8c61\u7684\u6708\u4efd<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.month\n# \u8f93\u51fa : 12\n<\/pre>\n<\/div>\n<ol start=\\\"3\\\">\n<li>datetime.day<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u7ed9\u5b9adatetime\u5bf9\u8c61\u7684\u5929\u6570\uff08\u4e00\u4e2a\u6708\u7684\u67d0\u5929\uff09<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.day\n# \u8f93\u51fa : 6\n<\/pre>\n<\/div>\n<ol start=\\\"4\\\">\n<li>datetime.hour<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u7ed9\u5b9adatetime\u5bf9\u8c61\u7684\u5c0f\u65f6\u6570\uff08\u4e00\u5929\u7684\u67d0\u65f6\uff09<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.hour\n# \u8f93\u51fa : 13\n<\/pre>\n<\/div>\n<ol start=\\\"5\\\">\n<li>datetime.minute<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u7ed9\u5b9adatetime\u5bf9\u8c61\u7684\u5206\u949f\u6570\uff08\u4e00\u5c0f\u65f6\u7684\u67d0\u5206\uff09<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.minute\n# \u8f93\u51fa : 30\n<\/pre>\n<\/div>\n<ol start=\\\"6\\\">\n<li>datetime.second<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u7ed9\u5b9adatetime\u5bf9\u8c61\u7684\u79d2\u6570\uff08\u4e00\u5206\u949f\u7684\u67d0\u79d2\uff09<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50)\nd.second\n# \u8f93\u51fa : 50\n<\/pre>\n<\/div>\n<ol start=\\\"7\\\">\n<li>datetime.microsecond<\/li>\n<\/ol>\n<p>\u8fd4\u56de\u7ed9\u5b9adatetime\u5bf9\u8c61\u7684\u6beb\u79d2\u6570\uff08\u4e00\u5206\u949f\u7684\u67d0\u79d2\uff09<\/p>\n<div>\n<pre>d = datetime(2019,12,6,13,30,50,3000)\nd.microsecond\n# \u8f93\u51fa : 3000\n<\/pre>\n<\/div>\n<ol start=\\\"8\\\">\n<li>datetime.tzinfo<\/li>\n<\/ol>\n<p>\u8fd4\u56dedatetime\u5bf9\u8c61\u7684\u65f6\u533a\uff0c\u524d\u63d0\u662f\u5728\u521b\u5efadatetime\u5bf9\u8c61\u65f6\u9700\u4f20\u5165tzinfo\u53c2\u6570\uff0c\u5982\u679c\u6ca1\u6709\u4f20\u5165\u5219\u8fd4\u56de\u503c\u4e3aNone\u3002<\/p>\n<div>\n<pre># \u83b7\u53d6\u4e00\u4e2a\u542b\u6709\u65f6\u533a\u7684datetime\u5bf9\u8c61\nimport pytz\nsh = pytz.timezone(\\'Asia\/Shanghai\\')\nd = datetime(2018, 11, 1, hour=8, tzinfo=sh)\nd.tzinfo\n# \u8f93\u51fa : &lt;DstTzInfo \\'Asia\/Shanghai\\' LMT+8:06:00 STD&gt;<\/pre>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 datetime\u662fpython\u7684\u5185\u7f6e\u6a21\u5757\uff0c\u7528\u6765\u5904\u7406\u65e5\u671f\u548c\u65f6\u95f4\u3002 \u8be5\u6a21\u5757\u5e38\u7528\u7684\u7c7b\u6709\uff1a \u7c7b\u540d \u529f\u80fd\u8bf4\u660e da &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=1633\"> <span class=\"screen-reader-text\">python datetime\u6a21\u5757-\u65e5\u671f\u65f6\u95f4\u5904\u7406<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[106,126],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":0,"uagb_excerpt":"\u524d\u8a00 datetime\u662fpython\u7684\u5185\u7f6e\u6a21\u5757\uff0c\u7528\u6765\u5904\u7406\u65e5\u671f\u548c\u65f6\u95f4\u3002 \u8be5\u6a21\u5757\u5e38\u7528\u7684\u7c7b\u6709\uff1a \u7c7b\u540d \u529f\u80fd\u8bf4\u660e da&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1633"}],"collection":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1633"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1633\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1633"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}