UTC 时间:
本地时间:
// 获取秒级时间戳
long timestampSeconds = System.currentTimeMillis() / 1000L;
// 获取毫秒级时间戳
long timestampMillis = System.currentTimeMillis();
import time
import datetime
# 获取秒级时间戳
timestamp_seconds = int(time.time())
# 获取毫秒级时间戳
timestamp_millis = int(time.time() * 1000)
# 使用 datetime
timestamp_millis = int(datetime.datetime.now().timestamp() * 1000)
// 获取秒级时间戳
const timestampSeconds = Math.floor(Date.now() / 1000);
// 获取毫秒级时间戳
const timestampMillis = Date.now();
// 或者使用 new Date()
const timestampMillis2 = new Date().getTime();
// 获取秒级时间戳
$timestampSeconds = time();
// 获取毫秒级时间戳
$timestampMillis = round(microtime(true) * 1000);
import "time"
// 获取秒级时间戳
timestampSeconds := time.Now().Unix()
// 获取毫秒级时间戳
timestampMillis := time.Now().UnixNano() / 1e6
-- MySQL
SELECT UNIX_TIMESTAMP(); -- 秒级时间戳
SELECT UNIX_TIMESTAMP(NOW()) * 1000; -- 毫秒级时间戳
-- PostgreSQL
SELECT EXTRACT(EPOCH FROM NOW())::INTEGER; -- 秒级时间戳
SELECT EXTRACT(EPOCH FROM NOW()) * 1000; -- 毫秒级时间戳