Simulate Linux time commands in Windows

In Windows, the time command in Linux can be used to obtain the command execution time. In Windows, there is no similar command, so we can write a batch process and name it time. bat. [Plain] @ echo off set/a StartMS = % time :~ 3, 1% * 60000 + % time :~ 4,1% * 6000 + % time :~ 6, 1% * 1000 + % time :~ 7,1% * 100 + % time :~ 9,1% * 10 + % time :~ 1% % 2% 3% 4% 5% 6 set/a EndMS = % time :~ 3, 1% * 60000 + % time :~ 4,1% * 6000 + % time :~ 6, 1% * 1000 + % time :~ 7,1% * 100 + % time :~ 9,1% * 10 + % time :~ 5.3% set/a realtime = % EndMS %-% StartMS % echo % realtime % ms this is an example of execution. Test the running speed of different PHP versions 5.4, 5.5, and: [plain] F: \ BAK> time. bat F: \ BAK \ php-5.3.27 \ php.exe primes. benchmark. php PHP version 5.3.27 Found 148933 prime numbers. 867 ms F: \ BAK> time. bat F: \ BAK \ php-5.4.19 \ php.exe primes. benchmark. php PHP version 5.4.19 Found 148933 prime numbers. 759 ms F: \ BAK> time. bat F: \ BAK \ php-5.5.4 \ php.exe primes. benchmark. php PHP version 5.5.4 Found 148933 prime numbers. 733 ms