关于24小时计时制怎么换算成am/pm的格式？

[laosan]

日期 24小时计时制 日期 am/pm
2008-08-02 00:00:00 ?
2008-08-02 00:00:01 ?
2008-08-02 00:59:59 ?
2008-08-02 01:00:00 ?
2008-08-02 01:00:01 ?
2008-08-02 11:59:59 ?
2008-08-02 12:00:00 ?
2008-08-02 12:00:01 ?
2008-08-02 12:59:59 ?
2008-08-02 13:00:00 ?
2008-08-02 13:00:01 ?
2008-08-02 23:00:00 ?
2008-08-02 23:00:01 ?
2008-08-02 23:59:59 ?

又没有通用的函数什么的？

[mrshelly]

小时取余.
模0为am 模1为pm

[caotian2000]

JS or PHP?

[laosan]

楼上的答案太抽象了。

[panzhiqi]

介意用unix时间戳
用date函数的date('a', time())

[laosan]

mrshelly(Shelly)：
答案太抽象了。

caotian2000(乡约北京)：
结果应该是固定的。

如果问函数，两个都可以，最好两个都提供，^-^.

[foolbirdflyfirst]

慢了,呵呵

ls对了

echo date('Y-m-d H:i:s a',strtotime('2008-08-02 00:00:00'));

[laosan]

有没有哪个兄台直接把“？”换成正确的值。

[wasuka]

UPDATE 表
SET 24小时计时制 = IF(LEFT(24小时计时制, 2) > 12,
CONCAT(LEFT(24小时计时制, 2)-12, RIGHT(24小时计时制, 6)),
24小时计时制),
t = IF(LEFT(24小时计时制, 2) > 12, 'am' , 'pm');

[wasuka]

更正下：


UPDATE 表
SET 24小时计时制 = IF(LEFT(24小时计时制, 2) > 12,
CONCAT(LEFT(24小时计时制, 2)-12, RIGHT(24小时计时制, 6)),
24小时计时制),
`日期 am/pm`= IF(LEFT(24小时计时制, 2) > 12, 'am' , 'pm');

[willko]

<?php
echo date('Y-m-d H:i:s A', strtotime('2008-08-02 23:59:59'));
?>

[Aylazhang]

$drr = array(
"2008-08-02 00:00:00",
"2008-08-02 00:00:01",
"2008-08-02 00:59:59",
"2008-08-02 01:00:00",
"2008-08-02 01:00:01",
"2008-08-02 11:59:59",
"2008-08-02 12:00:00",
"2008-08-02 12:00:01",
"2008-08-02 12:59:59",
"2008-08-02 13:00:00",
"2008-08-02 13:00:01",
"2008-08-02 23:00:00",
"2008-08-02 23:00:01",
"2008-08-02 23:59:59",
);

$r = array_map('conv_date',$drr);
print_r($r);

function conv_date($s) {
return strftime("%Y-%m-%d %I:%M:%S %p",strtotime($s));
}

[ai_ni]

echo date('Y-m-d H:i:s a',strtotime('2008-08-02 00:00:00'));

mark!