diff --git a/TASKS.md b/TASKS.md
index 48a0497..211b590 100644
--- a/TASKS.md
+++ b/TASKS.md
@@ -20,6 +20,7 @@
 
 | Date | Task |
 |------|------|
+| 2026-02-15 | Calendar-based reminders (at/yearly) with persistence |
 | 2026-02-15 | v1.1.0 (channel filter, JSON logging, dork, wayback, tests) |
 | 2026-02-15 | v1.0.0 (IRCv3, chanmgmt, state persistence) |
 | 2026-02-15 | Wave 4 (opslog, note, subdomain, headers, exploitdb, payload) |
diff --git a/docs/CHEATSHEET.md b/docs/CHEATSHEET.md
index fbdbf27..2864b25 100644
--- a/docs/CHEATSHEET.md
+++ b/docs/CHEATSHEET.md
@@ -273,6 +273,21 @@ MAXMIND_LICENSE_KEY=xxx ./scripts/update-data.sh # + GeoLite2
 !timer cancel deploy       # Cancel a timer
 ```
 
+## Remind
+
+```
+!remind 5m check oven            # One-shot (in-memory)
+!remind every 1h hydrate         # Repeating (in-memory)
+!remind at 2027-06-15 deploy     # Calendar one-shot (persisted)
+!remind at 2027-06-15 14:30 go   # With explicit time
+!remind yearly 02-14 valentines  # Yearly recurring (persisted)
+!remind yearly 12-25 09:00 xmas  # Yearly with time
+!remind list                     # Show active reminders
+!remind cancel abc123            # Cancel by ID
+```
+
+Default time: 12:00. Timezone: `bot.timezone` config (default UTC).
+
 ## Plugin Template
 
 ```python
diff --git a/docs/USAGE.md b/docs/USAGE.md
index 9843a85..2a6ff67 100644
--- a/docs/USAGE.md
+++ b/docs/USAGE.md
@@ -50,6 +50,7 @@ plugins_dir = "plugins"       # Plugin directory path
 rate_limit = 2.0              # Max messages per second (default: 2.0)
 rate_burst = 5                # Burst capacity (default: 5)
 admins = []                   # Hostmask patterns (fnmatch), IRCOPs auto-detected
+timezone = "UTC"              # Timezone for calendar reminders (IANA tz name)
 
 [logging]
 level = "info"                # Logging level: debug, info, warning, error
@@ -99,6 +100,12 @@ format = "text"               # Log format: "text" (default) or "json"
 | `!timer <duration> [label]` | Set countdown timer with notification |
 | `!timer list` | Show active timers |
 | `!timer cancel <label>` | Cancel a running timer |
+| `!remind <duration> <text>` | One-shot reminder after duration |
+| `!remind every <duration> <text>` | Repeating reminder at interval |
+| `!remind at <YYYY-MM-DD> [HH:MM] <text>` | Calendar reminder at specific date/time |
+| `!remind yearly <MM-DD> [HH:MM] <text>` | Yearly recurring reminder |
+| `!remind list` | Show all active reminders |
+| `!remind cancel <id>` | Cancel a reminder by ID |
 | `!geoip <ip>` | GeoIP lookup (city, country, coords, timezone) |
 | `!asn <ip>` | ASN lookup (AS number, organization) |
 | `!tor <ip\|update>` | Check IP against Tor exit nodes |
@@ -412,6 +419,30 @@ the IRC 512-byte line limit (RFC 2812). The overhead of `PRIVMSG <target> :`
 and `\r\n` is accounted for, so plugins can send arbitrarily long text
 without worrying about protocol limits.
 
+### `!remind` -- Reminders
+
+Set one-shot, repeating, or calendar-based reminders. Duration-based reminders
+are in-memory and lost on restart. Calendar reminders (`at`, `yearly`) are
+persisted via `bot.state` and restored on reconnect.
+
+```
+!remind 5m check the oven               One-shot after 5 minutes
+!remind 2d12h renew cert                 One-shot after 2 days 12 hours
+!remind every 1h drink water             Repeat every hour
+!remind at 2027-06-15 deploy release     Fire at specific date (noon default)
+!remind at 2027-06-15 14:30 deploy       Fire at specific date + time
+!remind yearly 02-14 valentines          Every year on Feb 14 at noon
+!remind yearly 12-25 09:00 merry xmas    Every year on Dec 25 at 09:00
+!remind list                             Show all active reminders
+!remind cancel abc123                    Cancel by ID
+```
+
+- Default time when omitted: **12:00** (noon) in configured timezone
+- Timezone: `bot.timezone` in config, default `UTC`
+- Leap day (02-29): fires on Feb 28 in non-leap years
+- Past dates for `at` are rejected
+- Calendar reminders survive restarts; duration-based do not
+
 ## Reconnect Backoff
 
 On connection loss, the bot reconnects with exponential backoff and jitter: