PAL

Ptolemaeus Arabus et Latinus

_ (the underscore) is the placeholder for exactly one character.
% (the percent sign) is the placeholder for no, one or more than one character.
%% (two percent signs) is the placeholder for no, one or more than one character, but not for blank space (so that a search ends at word boundaries).

At the beginning and at the end, these placeholders are superfluous.

وقت نصف النهر‘noon’

Arabic

References: PH Morelon: I.8:4, 27:15
Translation of:
Greek: μεσημβρία [Alm. Heiberg: II.6, 107:15; II.9, 145:7; I.12, 65:21. – PH Heiberg: I.8:4, 80:23]
Modern translations:
French: midi [PH Morelon: I.8:4, 26:18]
German: Mittag [PH Nix: I.8:4, 81:27]
Synonyms:
(خطّ) نصف النهار فوق الأرض [Alm. MS Leiden: f. 24v.38]
انتصاف النهار[Alm. MS Tunis: 23b.21]
نصف النهار[Alm. MS Leiden: f. 18r.14. – Alm. MS Tunis: ; 31b.3-4]