From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.2 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, URIBL_ZEN_BLOCKED_OPENDNS autolearn=ham autolearn_force=no version=3.4.4 Received: from minnie.tuhs.org (minnie.tuhs.org [IPv6:2600:3c01:e000:146::1]) by inbox.vuxu.org (Postfix) with ESMTP id 8F3082010C for ; Mon, 22 Sep 2025 20:19:26 +0200 (CEST) Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 37E3A44501; Tue, 23 Sep 2025 04:19:22 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuhs.org; s=dkim; t=1758565162; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:list-id:list-help:list-owner: list-unsubscribe:list-subscribe:list-post; bh=svDx0t+9tfXZFBcz/ZGvBAQXdotjOANQcNrGxKGkhIg=; b=FHFRcejZ2ZfTuTnvEpNJ7a7LbBbPl6O3Xdjm8fqPFZBg8ittWpwH2ki0KS7U2baIjA6qwI vnlwopWDcomToM7jJ3gMEUNFYF6qb10EFm0Uidzfa4aKN/NbY8qirBF40g7fHm371YOzMh vfwOBWRQPXk5+oLvaVlSV0Svzf2nIEU= Received: from mail-lj1-x234.google.com (mail-lj1-x234.google.com [IPv6:2a00:1450:4864:20::234]) by minnie.tuhs.org (Postfix) with ESMTPS id 283FB444FB for ; Tue, 23 Sep 2025 04:19:17 +1000 (AEST) Received: by mail-lj1-x234.google.com with SMTP id 38308e7fff4ca-363cb0cd8a1so40259531fa.2 for ; Mon, 22 Sep 2025 11:19:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758565155; x=1759169955; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=svDx0t+9tfXZFBcz/ZGvBAQXdotjOANQcNrGxKGkhIg=; b=ZxyiUCRVblvbvVmNLZVpTZ0PWJ9Y5nFeJU082sahdvZovzN1/1EX9tKiKG+Yfs97br N5ppwKiC5s32dn6lKdeLimcGPqVE34ZZQGTBY5YaD1iZchKs4vOcPyojM13E0jXHoRxx zQiuEO+hQKJ8tmOySQwT+cA6Lsu2D4WO65spAkD5UOpA4CISti1mLBNhNoM5yQohpA3L nTnanGqFTemKU6LVQ7D7xR9d+Vo5txJZgDX/IylXpF/ph6zpvJQMHrAUJdKHFnhlfub4 Q855wmTHC3ecBmYVobdMcdWkEpEjFfVWr9tuhG5rnGNXpbhV2udSstngJOgK6zkNgItL 57UQ== X-Gm-Message-State: AOJu0Yw3tdCbtYv1uygENWkS+yxOhd1T4zcis/RGsMvcUhEwDFHS7qXG XBeIrNnQ8CsigNOo9jl9D4dsgVMKwhQCRHqBCfMBaf4A2II1y2CSRPtaInZ6I3v1nd6talusFWF qPn3xoptiW4IUjFenPFRt0q9sN1vlhFyBx6UgqhznYqvEhUOMpj5XH44= X-Gm-Gg: ASbGncu86dWK6ortwbzVB6YUereocht1XWF/LI3ULnfSVwsPrrSblnPToux+Djwwr4Z A+rQCIDD8i35jPadKsUoPVwp2nJePa4lXl9UeHsrQKTcjIHmiOuPY7G2TQ0WHUp8D8P6IR7ZL/V N763F1wnxB1lTphBGuPAH6Wg5+VvxMta9vuznacL0fjTOVRo9HWQ9NWDmvzrSPLW8gNxXbyu+x1 o1uGOhUeg== X-Google-Smtp-Source: AGHT+IFVaFB6j7YBCevcDdRDKObIKvHhDnswdKnD83ciLzJ6R4WfsBzfbMv2zHYaZe8cNSPmOlCPl9eNo4iEKRuigVw= X-Received: by 2002:a05:6512:31c6:b0:571:ed63:2efa with SMTP id 2adb3069b0e04-579e1d561aemr4568161e87.19.1758565154922; Mon, 22 Sep 2025 11:19:14 -0700 (PDT) MIME-Version: 1.0 Date: Mon, 22 Sep 2025 14:18:58 -0400 X-Gm-Features: AS18NWCBioE1dutS4s_speGXtoFELooB4zf74vYXgVuWC8UDwgKHvnO7djNsqAI Message-ID: To: TUHS main list Content-Type: text/plain; charset="UTF-8" Message-ID-Hash: 2UZK6A7VFIR2POBVHC7VZWW2Q5N2E732 X-Message-ID-Hash: 2UZK6A7VFIR2POBVHC7VZWW2Q5N2E732 X-MailFrom: douglas.mcilroy@dartmouth.edu X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] History of cal(1)? List-Id: The Unix Heritage Society mailing list Archived-At: <> List-Archive: <> List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: Douglas McIlroy via TUHS Reply-To: Douglas McIlroy > [cal(1)] has all the logic to adjust for 16th century > calendar changes ... (Try "cal 9 1752") > My impression is that [it is] overimplemented. The fact that a 16th century change is illustrated by an 18th century example suggests that not quite "all the logic" is there. It's good for Great Britain and its colonies, but not elsewhere. So I'd say it's underimplemented :) Doug