Template:Isda Local Business Day summ
There is no plain “Business Day” in the ISDA
Even old stagers are occasionally surprised to rediscover that ISDA’s crack drafting squad™ didn’t define the expression “{{{{{1}}}|Business Day}}” in the ISDA Master Agreement: only “{{{{{1}}}|Local Business Day}}” and “{{{{{1}}}|General Business Day}}” (and even the latter of these is only used in the definition of Local Business Day). It is, of course, defined in the 2006 ISDA Definitions and their spiritual successors the 2021 ISDA Interest Rate Derivatives Definitions — but these operate only at {{{{{1}}}|Confirmation}}/{{{{{1}}}|Transaction}} level. (in fairness, the first ISDA definitions were published before the 1992 ISDA, so there was never much of a gap)
But there must have been an uneasy period where there was no Business Day
{{Isda General Business Day summ {{{1}}}|{{{1}}}}}
Local Business Day and Local Delivery Day
What is the difference between a “Local Business Day” and a “Local Delivery Day”?
Local Business Day is a lot more fiddly, and context dependent, for one thing. As per our nutshell summary, what counts as a Local Business Day depends on who is asking: for performing general obligations it looks to the Transaction Confirmation; for Waiting Periods it depends where the triggering event occurs, for payments it depends where the account is located, for communications it depends on the location of the recipient.
A Local Delivery Day — which comes up only in when considering whether one has failed to deliver a non-cash security of some kind (Section 5(a)(i)) or, even though ostensibly having failed to dliver it, you haven’t yet technically failed to deliver it, on account of an intervening Illegality or Force Majeure which has triggered a Waiting Period before that failure to deliver becomes an official Failure to Pay or Deliver.
CSA relevance
Local Business Day is also defined in the 1995 CSA (and its successors, dependents, friends and relations), as it the related term Regular Settlement Day. Which makes for fun, as premium subscribers will see below.