Expiration time

Forex Trader
114538
Hello. How can I tell my pending order to expire after 5 minutes fom the the moment I've sent it? I send it to the server this way:

OrderSend(Symbol(), OP_SELLSTOP, my_Lots, Bid-my_Entry_Pips_Buy, my_Slippage, Bid-my_Entry_Pips_Sell+my_Stop_Loss, Bid-my_Entry_Pips_Sell-my_Take_Profit, NULL, 222, 0, Green);

What should I write in the "0" field? Please don't forward me to other topics. If you can just write the formula. Is it something like [CurTime()+my_Minures*60]?
Forex Trader
114538
Forex Trader  
doesn't anybody know how? :(
Forex Trader
114538
Forex Trader  
Is it something like [CurTime()+my_Minures*60]?

Yes, it is. (without square brackets)