From Wikipedia. I could not get it to paste in right but you can get an idea:
Drug Name Common Brand Names* Elimination Half-Life
Triazolam Halcion, Rilamir 2-2 hours
Bretazenil[10] N/A 2.5-2.5 hours
Midazolam Dormicum, Versed, Hypnovel, Dormonid 3-3 hours
Tetrazepam Myolastan 3–26 hours
Oxazepam Seresta, Serax, Serenid, Serepax, Sobril, Oxabenz, Oxapax, Opamox 4–15 hours
Brotizolam Lendormin, Dormex, Sintonal, Noctilan 4–5 hours
Chlordiazepoxide Librium, Risolid, Elenium 5–30 hours
Etizolam Etilaam, Etizest, Pasaden, Depas 6-6 hours
Loprazolam Dormonoct 6–12 hours
Clotiazepam Veratran, Clozan, Rize 6–18 hours
Temazepam Restoril, Normison, Euhypnos, Temaze, Tenox 8–22 hours
Cinolazepam Gerodorm 9-9 hours
Alprazolam Helex, Xanax, Xanor, Onax, Alprox, Restyl, Tafil, 9–20 hours
Lormetazepam Loramet, Noctamid, Pronoctan 10–12 hours
Premazepam N/A 10–13 hours
Bromazepam Lectopam, Lexaurin, Lexotanil, Lexotan, Bromam 10–20 hours
Lorazepam Ativan, Lorenin, Lorsilan, Temesta, Tavor, Lorabenz 10–20 hours
Estazolam ProSom 10–24 hours
Nimetazepam Erimin 14–30 hours
Nitrazepam Mogadon, Alodorm, Pacisyn, Dumolid, Nitrazadon 15–38 hours
Pyrazolam N/A 16-18 hours
Flunitrazepam Rohypnol, Hipnosedon, Vulbegal, Fluscand, Flunipam, Ronal, Rohydorm, 18–26 hours
Clonazepam Rivatril, Rivotril, Klonopin, Iktorivil, Paxam 18–50 hours
Cloxazolam Sepazon, Olcadil 18–50 hours
Diazepam Antenex, Apaurin, Apzepam, Apozepam, Hexalid, Pax, Stesolid, Stedon, Valium, Vival, Valaxona 20–100 hours
Halazepam Paxipam 30–100 hours
Ketazolam Anxon 30–100 hours
Clorazepate Tranxene, Tranxilium 36–100 hours
Medazepam Nobrium, Ansilan, Mezapam, Rudotel, Raporan 36–200 hours
Prazepam Lysanxia, Centrax 36–200 hours
Quazepam Doral 39–120 hours
Pinazepam Domar 40–100 hours
Flurazepam Dalmadorm, Dalmane 40–250 hours
Diclazepam[11] N/A 42–220 hours
Ethyl loflazepate Victan, Meilax, Ronlax 50–100 hours
Nordazepam Madar, Stilny 50–120 hours
Delorazepam Dadumir 60–140 hours
Phenazepam Phenazepam 60-60 hours
Flutoprazepam Restas 60–90 hours
Flubromazepam[12] N/A 100–220 hours