Read the symbol specification
Find the rollover cut-off and time zone, long and short rates, multipliers and treatment of holidays. A common triple-charge convention must not be assumed for every instrument or broker.
Translate the time carefully
Dubai stays at UTC+4, while some overseas time zones change seasonally. A broker’s server time may differ from London or New York. Use the actual server rule for a position crossing the cut-off.
Model the charged units
The cost calculator accepts settlement-weighted nights. Enter three only when the applicable schedule charges three financing units; do not count both the multiplier and the same weekend again. Save the schedule used because rates and holiday adjustments can change.