import datetime

# 获取当前日期（UTC）
today = datetime.datetime.now(datetime.UTC).date()

# 获取当天开始时间（00:00:00 UTC）
start_of_day = datetime.datetime.combine(today, datetime.time.min, tzinfo=datetime.timezone.utc)
# 获取当天结束时间（23:59:59.999999 UTC）
end_of_day = datetime.datetime.combine(today, datetime.time.max, tzinfo=datetime.timezone.utc)

# 将时间转换为时间戳
start_timestamp = start_of_day.timestamp()
end_timestamp = end_of_day.timestamp()

print(f"当天开始的 UTC 时间戳: {start_timestamp}")
print(f"当天结束的 UTC 时间戳: {end_timestamp}")