sleep

Do I want to sleep at the same time as everybody else? Would I do better work if I worked at the same time everyone else slept, and slept at the same time everyone else worked? Anyway ... Brisbane City Council has noise regulations, so I took a look:

Air conditioner noise is ok from 7am to 10pm, building work noise is ok from 6.30am to 6.30pm on every day except Sunday...

Also, the Do Not Call register says:

• telemarketing calls can be made on weekdays between 9.00 am and 8.00 pm
  
• research calls can be made on weekdays between 9.00 am and 8.30 pm
  
• a telemarketing or research call can be made on a Saturday between 9.00 am and 5.00 pm
  
• research calls can be made on a Sunday between 9.00 am to 5.00pm but not on a nationally recognised public holiday
  
• telemarketing calls can not be made on a Sunday or a nationally recognised public holiday.
  

Plus, there's a 40km/h speed limit on weekends in Fortitude Valley from 10pm to 6am; the EPA legislation has references to a 6am outdoor shooting range noise exclusion; a QR development checklist writes about assessing noise impact between 10pm and 6am.

As for Brisbane Airport, there's no curfew on planes and their Noise Management Strategy suggests that ground running engines is only unlimited between 5am and 9pm. Tough if you live near the airport or under a flight path.

Basically I think the message is that you can sleep uninterrupted in Brisbane between 10pm and 6am, but that's it, really... etiquette says to be careful not to phone people after about 8pm or so.