标签：convert format pad strftime nat add orm 实现 body
目标： 根据UTC时间， 输出任意格式的当地时间字符串
实现：
char timeString[256]; struct tm tm; time_t timeConverted = time(NULL); // 获取当前时间 localtime_r(&(timeConverted),&tm); // 转换成tm结构 strftime(timeString, sizeof(timeString), "%Y-%m-%d %H-%M-%S", &tm); // 根据格式将tm转换到timeString中
| specifier | Replaced by | Example |
|---|---|---|
%a |
Abbreviated weekday name * | Thu |
%A |
Full weekday name * | Thursday |
%b |
Abbreviated month name * | Aug |
%B |
Full month name * | August |
%c |
Date and time representation * | Thu Aug 23 14:55:02 2001 |
%C |
Year divided by 100 and truncated to integer (00-99) |
20 |
%d |
Day of the month, zero-padded (01-31) |
23 |
%D |
Short MM/DD/YY date, equivalent to %m/%d/%y |
08/23/01 |
%e |
Day of the month, space-padded ( 1-31) |
23 |
%F |
Short YYYY-MM-DD date, equivalent to %Y-%m-%d |
2001-08-23 |
%g |
Week-based year, last two digits (00-99) |
01 |
%G |
Week-based year | 2001 |
%h |
Abbreviated month name * (same as %b) |
Aug |
%H |
Hour in 24h format (00-23) |
14 |
%I |
Hour in 12h format (01-12) |
02 |
%j |
Day of the year (001-366) |
235 |
%m |
Month as a decimal number (01-12) |
08 |
%M |
Minute (00-59) |
55 |
%n |
New-line character (‘\n‘) |
|
%p |
AM or PM designation | PM |
%r |
12-hour clock time * | 02:55:02 pm |
%R |
24-hour HH:MM time, equivalent to %H:%M |
14:55 |
%S |
Second (00-61) |
02 |
%t |
Horizontal-tab character (‘\t‘) |
|
%T |
ISO 8601 time format (HH:MM:SS), equivalent to %H:%M:%S |
14:55:02 |
%u |
ISO 8601 weekday as number with Monday as 1 (1-7) |
4 |
%U |
Week number with the first Sunday as the first day of week one (00-53) |
33 |
%V |
ISO 8601 week number (00-53) |
34 |
%w |
Weekday as a decimal number with Sunday as 0 (0-6) |
4 |
%W |
Week number with the first Monday as the first day of week one (00-53) |
34 |
%x |
Date representation * | 08/23/01 |
%X |
Time representation * | 14:55:02 |
%y |
Year, last two digits (00-99) |
01 |
%Y |
Year | 2001 |
%z |
ISO 8601 offset from UTC in timezone (1 minute=1, 1 hour=100) If timezone cannot be determined, no characters |
+100 |
%Z |
Timezone name or abbreviation * If timezone cannot be determined, no characters |
CDT |
%% |
A % sign |
% |
标签：convert format pad strftime nat add orm 实现 body
原文地址：http://www.cnblogs.com/beckzhu/p/6541267.html
