TimeDayOfWeek(TimeCurrent()) 求助!

extern int Friday = 65;
extern int Monday = 5;

int start() {

if (Friday > 0) {
if (TimeDayOfWeek(TimeCurrent()) == 5) { ///如果是周五
if (TimeCurrent() > 86400 * (TimeCurrent() / 86400) + 86400 - 60 * Friday) {
fOrderCloseMarket();
return (0);
}
}
}
if (Monday > 0) {
if (TimeDayOfWeek(TimeCurrent()) == 1) ///如果是周一
if (TimeCurrent() < 86400 * (TimeCurrent() / 86400) + 60 * Monday) return (0);
}

return (0);
}

int fOrderCloseMarket(bool ai_0 = TRUE, bool ai_4 = TRUE) {
int l_error_16;
int li_ret_8 = 0;
for (int l_pos_12 = OrdersTotal() - 1; l_pos_12 >= 0; l_pos_12--) {
if (OrderSelect(l_pos_12, SELECT_BY_POS, MODE_TRADES)) {
if (OrderSymbol() == Symbol()) {
if (ai_0) {
if (OrderType() == OP_BUY) {
RefreshRates();
if (!IsTradeContextBusy()) {
if (!OrderClose(OrderTicket(), OrderLots(), ND(Bid), 3, CLR_NONE)) {
l_error_16 = GetLastError();
Print("Error close BUY " + OrderTicket() + " " + l_error_16);
li_ret_8 = -1;
}
} else {
if (TimeCurrent() > g_datetime_240 + 20) {
g_datetime_240 = TimeCurrent();
Print("Need close BUY " + OrderTicket() + ". Trade Context Busy");
}
return (-2);
}
}
}
if (ai_4) {
if (OrderType() == OP_SELL) {
RefreshRates();
if (!IsTradeContextBusy()) {
if (!OrderClose(OrderTicket(), OrderLots(), ND(Ask), 3, CLR_NONE)) {
l_error_16 = GetLastError();
Print("Error close SELL " + OrderTicket() + " " + l_error_16);
li_ret_8 = -1;
}
} else {
if (TimeCurrent() > g_datetime_244 + 20) {
g_datetime_244 = TimeCurrent();
Print("Need close SELL " + OrderTicket() + ". Trade Context Busy");
}
return (-2);
}
}
}
}
}
}
return (li_ret_8);
}

1、高手帮忙看看 start里面的是什么意思？ 是不是限制时间交易了呢？

一天是 86400秒 TimeCurrent() 是自从 1970年1月1日期计算出来的秒。但是搞不懂什么意思。

2、TimeDayOfWeek(TimeCurrent()) == 5 早上运行的时候TimeDayOfWeek(TimeCurrent()) =4 不等于5。 但是下午4点打开时候运行就TimeDayOfWeek(TimeCurrent()) =5 就正确了。很困惑