The list itself is correct; however, in addition to the following public holidays (excluding holidays that always fall on a Sunday), further public holidays apply (see below):
Public holidays in the canton also include days on which the cantonal administration offices are closed for at least half a day.
Meaning: The catalogue of public holidays relevant to the Code of Civil Procedure (CCP) is broader than the catalogue of cantonal public holiday legislation in the Canton of Neuchâtel. A list of public holidays applicable within the administration can be found at the following link: https://www.ne.ch/themes/economie-et-emploi/jours-feries-officiels
Example: The cantonal administration is closed on Easter Monday, as well as on Whit Monday. See also BGer 9C_396/2018 of 20.12.2018, E. 2.3 f.
Same regulation as in LI-CPC: The list of StPO-relevant holidays is therefore broader than the list of cantonal holiday legislation of the Canton of Neuchâtel.
Same regulation as in LI-CPC: The list of holidays relevant to administrative procedures is therefore broader than the list of cantonal holiday legislation of the Canton of Neuchâtel.
Holidays as in the CETS No. 076 list
Corpus Christi is declared a public holiday in the municipality of Le Landeron.