From d782232110bb376b59b798213bc4392e0a42653e Mon Sep 17 00:00:00 2001 From: Michael Chirico Date: Fri, 17 Jan 2025 13:03:30 -0800 Subject: [PATCH] Explain comment in tests previously marked as OBSCURE (#6632) * explain comment previously OBSCURE * More sources, and it's still OBSCURE :) --- inst/tests/tests.Rraw | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/inst/tests/tests.Rraw b/inst/tests/tests.Rraw index 5fddeecf1..d4513936a 100644 --- a/inst/tests/tests.Rraw +++ b/inst/tests/tests.Rraw @@ -10578,7 +10578,11 @@ test(1702.1, isoweek(test_cases), test_values) # but calculating from Date brings these into play, #2407 test(1702.2, isoweek(as.Date(test_cases)), test_values) -# *** OBSCURE ERROR WHEN Sys.timezone() = 'America/Argentina/Buenos_Aires' *** +# *** OBSCURE DST ERROR WHEN Sys.timezone() = 'America/Argentina/Buenos_Aires' *** +# *** 00:00 does not exist, h/t rikivillalba@ who worked through this *** +# *** https://techcommunity.microsoft.com/blog/dstblog/argentina-is-changing-their-daylight-saving-time-on-december-30/311020 *** +# *** https://mm.icann.org/pipermail/tz/2007-December/014743.html *** +# *** Official IANA sources: https://www.iana.org/time-zones *** test(1702.3, isoweek(as.POSIXct(test_cases)), test_values) # 1% sample of a 400-year cycle of dates for extra robustness