linux 毫秒时间戳转换

#include <stdio.h>
#include <sys/time.h>

int main() {
    struct timeval tv;
    gettimeofday(&tv, NULL);
    long long milliseconds = (long long)tv.tv_sec * 1000 + (long long)tv.tv_usec / 1000;
    printf("Current milliseconds timestamp: %lld\n", milliseconds);
    return 0;
}

import datetime

timestamp_ms = 1633086000000  # 示例毫秒时间戳
timestamp_s = timestamp_ms / 1000
readable_time = datetime.datetime.fromtimestamp(timestamp_s)
print("Readable time:", readable_time)

import datetime
import pytz

timestamp_ms = 1633086000000
timestamp_s = timestamp_ms / 1000
utc_time = datetime.datetime.utcfromtimestamp(timestamp_s).replace(tzinfo=pytz.UTC)
local_time = utc_time.astimezone(pytz.timezone('Asia/Shanghai'))
print("Local readable time:", local_time)