datetime
Get current date and time in various formats. Use whenever you need the current date, time, timestamps, or formatted datetime values for any purpose (logging, file naming, scheduling, comparisons, etc.)
What this skill does
# datetime - Current Date & Time Get the current date and time in various formats. ## Quick Reference ```bash # Date only date +%Y-%m-%d # 2025-01-15 date +%Y/%m/%d # 2025/01/15 date +%d-%m-%Y # 15-01-2025 # Date with time date +"%Y-%m-%d %H:%M:%S" # 2025-01-15 14:30:45 date +"%Y-%m-%dT%H:%M:%S" # 2025-01-15T14:30:45 (ISO 8601) date -u +"%Y-%m-%dT%H:%M:%SZ" # 2025-01-15T14:30:45Z (UTC ISO 8601) # Time only date +%H:%M:%S # 14:30:45 date +%H:%M # 14:30 date +%I:%M%p # 02:30PM (12-hour) # Timestamps date +%s # 1705329045 (Unix epoch) date +%s%3N # 1705329045123 (milliseconds) # Human readable date "+%B %d, %Y" # January 15, 2025 date "+%A, %B %d, %Y" # Wednesday, January 15, 2025 date "+%b %d %Y" # Jan 15 2025 # File-safe formats (no colons/spaces) date +%Y%m%d # 20250115 date +%Y%m%d_%H%M%S # 20250115_143045 date +%Y%m%d-%H%M%S # 20250115-143045 ``` ## When to Use Use this skill whenever you need: - Current date for logging or timestamps - Date strings for file naming - ISO 8601 formatted dates for APIs - Unix timestamps for calculations - Human-readable date displays - UTC time for cross-timezone consistency ## Format Codes | Code | Output | Example | |------|--------|---------| | `%Y` | Year (4-digit) | 2025 | | `%m` | Month (01-12) | 01 | | `%d` | Day (01-31) | 15 | | `%H` | Hour 24h (00-23) | 14 | | `%M` | Minute (00-59) | 30 | | `%S` | Second (00-59) | 45 | | `%I` | Hour 12h (01-12) | 02 | | `%p` | AM/PM | PM | | `%s` | Unix timestamp | 1705329045 | | `%A` | Weekday name | Wednesday | | `%B` | Month name | January | | `%b` | Month abbrev | Jan | | `%Z` | Timezone | PST | ## Common Patterns **Log timestamp:** ```bash echo "[$(date +"%Y-%m-%d %H:%M:%S")] Event occurred" ``` **Backup file naming:** ```bash cp file.txt "file_$(date +%Y%m%d_%H%M%S).txt" ``` **API timestamp (UTC):** ```bash date -u +"%Y-%m-%dT%H:%M:%SZ" ```
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